Finding the Fourth Proportional to 156,061.60, 233,764.35 and 129,817.60

Step by Step Solution

1. Step 1: Write the proportion equation
   156,061.60 : 233,764.35 = 129,817.60 : x
2. Step 2: Convert to fraction form
   156,061.60/233,764.35 = 129,817.60/x
3. Step 3: Cross multiply
   156,061.60x = 233,764.35 × 129,817.60
4. Step 4: Simplify right side
   156,061.60x = 30,346,726,882.56
5. Step 5: Solve for x
   x = 30,346,726,882.56/156,061.60
6. Step 6: Final answer
   x = 194,453.52