Finding the Fourth Proportional to 102,300,048.32, 141,174,123.20 and 55,257,121.50

Step by Step Solution

1. Step 1: Write the proportion equation
   102,300,048.32 : 141,174,123.20 = 55,257,121.50 : x
2. Step 2: Convert to fraction form
   102,300,048.32/141,174,123.20 = 55,257,121.50/x
3. Step 3: Cross multiply
   102,300,048.32x = 141,174,123.20 × 55,257,121.50
4. Step 4: Simplify right side
   102,300,048.32x = 7,800,875,678,042,083
5. Step 5: Solve for x
   x = 7,800,875,678,042,083/102,300,048.32
6. Step 6: Final answer
   x = 76,254,858.20