Finding the Fourth Proportional to 156,045.50, 234,012.89 and 56,178.87

Step by Step Solution

1. Step 1: Write the proportion equation
   156,045.50 : 234,012.89 = 56,178.87 : x
2. Step 2: Convert to fraction form
   156,045.50/234,012.89 = 56,178.87/x
3. Step 3: Cross multiply
   156,045.50x = 234,012.89 × 56,178.87
4. Step 4: Simplify right side
   156,045.50x = 13,146,579,444.74
5. Step 5: Solve for x
   x = 13,146,579,444.74/156,045.50
6. Step 6: Final answer
   x = 84,248.38