Finding the Fourth Proportional to 156,499.60, 234,690.42 and 56,635.12

Step by Step Solution

1. Step 1: Write the proportion equation
   156,499.60 : 234,690.42 = 56,635.12 : x
2. Step 2: Convert to fraction form
   156,499.60/234,690.42 = 56,635.12/x
3. Step 3: Cross multiply
   156,499.60x = 234,690.42 × 56,635.12
4. Step 4: Simplify right side
   156,499.60x = 13,291,720,099.55
5. Step 5: Solve for x
   x = 13,291,720,099.55/156,499.60
6. Step 6: Final answer
   x = 84,931.34