Finding the Fourth Proportional to 257,391,123,256.14, 355,199,808,072.04 and 141,647,882,890.50

Step by Step Solution

1. Step 1: Write the proportion equation
   257,391,123,256.14 : 355,199,808,072.04 = 141,647,882,890.50 : x
2. Step 2: Convert to fraction form
   257,391,123,256.14/355,199,808,072.04 = 141,647,882,890.50/x
3. Step 3: Cross multiply
   257,391,123,256.14x = 355,199,808,072.04 × 141,647,882,890.50
4. Step 4: Simplify right side
   257,391,123,256.14x = 50,313,300,816,516,398,186,496
5. Step 5: Solve for x
   x = 50,313,300,816,516,398,186,496/257,391,123,256.14
6. Step 6: Final answer
   x = 195,474,110,295.75