Finding the Fourth Proportional to 277,123.52, 382,397.98 and 156,257.62

Step by Step Solution

1. Step 1: Write the proportion equation
   277,123.52 : 382,397.98 = 156,257.62 : x
2. Step 2: Convert to fraction form
   277,123.52/382,397.98 = 156,257.62/x
3. Step 3: Cross multiply
   277,123.52x = 382,397.98 × 156,257.62
4. Step 4: Simplify right side
   277,123.52x = 59,752,598,247.61
5. Step 5: Solve for x
   x = 59,752,598,247.61/277,123.52
6. Step 6: Final answer
   x = 215,617.20