Finding the Fourth Proportional to 156,031.43, 233,904.56 and 56,168.78

Step by Step Solution

1. Step 1: Write the proportion equation
   156,031.43 : 233,904.56 = 56,168.78 : x
2. Step 2: Convert to fraction form
   156,031.43/233,904.56 = 56,168.78/x
3. Step 3: Cross multiply
   156,031.43x = 233,904.56 × 56,168.78
4. Step 4: Simplify right side
   156,031.43x = 13,138,132,321.27
5. Step 5: Solve for x
   x = 13,138,132,321.27/156,031.43
6. Step 6: Final answer
   x = 84,201.84