Finding the Fourth Proportional to 141,061.70, 194,665.38 and 77,399.98

Step by Step Solution

1. Step 1: Write the proportion equation
   141,061.70 : 194,665.38 = 77,399.98 : x
2. Step 2: Convert to fraction form
   141,061.70/194,665.38 = 77,399.98/x
3. Step 3: Cross multiply
   141,061.70x = 194,665.38 × 77,399.98
4. Step 4: Simplify right side
   141,061.70x = 15,067,096,518.69
5. Step 5: Solve for x
   x = 15,067,096,518.69/141,061.70
6. Step 6: Final answer
   x = 106,812.10