Finding the Fourth Proportional to 156,139.84, 234,066.24 and 56,275.59

Step by Step Solution

1. Step 1: Write the proportion equation
   156,139.84 : 234,066.24 = 56,275.59 : x
2. Step 2: Convert to fraction form
   156,139.84/234,066.24 = 56,275.59/x
3. Step 3: Cross multiply
   156,139.84x = 234,066.24 × 56,275.59
4. Step 4: Simplify right side
   156,139.84x = 13,172,215,755.08
5. Step 5: Solve for x
   x = 13,172,215,755.08/156,139.84
6. Step 6: Final answer
   x = 84,361.66