Finding the Fourth Proportional to 129,685.86, 194,616.27 and 50,790.24

Step by Step Solution

1. Step 1: Write the proportion equation
   129,685.86 : 194,616.27 = 50,790.24 : x
2. Step 2: Convert to fraction form
   129,685.86/194,616.27 = 50,790.24/x
3. Step 3: Cross multiply
   129,685.86x = 194,616.27 × 50,790.24
4. Step 4: Simplify right side
   129,685.86x = 9,884,607,061.20
5. Step 5: Solve for x
   x = 9,884,607,061.20/129,685.86
6. Step 6: Final answer
   x = 76,219.62