Finding the Fourth Proportional to 284,151.72, 392,128.58 and 156,826.41

Step by Step Solution

1. Step 1: Write the proportion equation
   284,151.72 : 392,128.58 = 156,826.41 : x
2. Step 2: Convert to fraction form
   284,151.72/392,128.58 = 156,826.41/x
3. Step 3: Cross multiply
   284,151.72x = 392,128.58 × 156,826.41
4. Step 4: Simplify right side
   284,151.72x = 61,496,115,499.23
5. Step 5: Solve for x
   x = 61,496,115,499.23/284,151.72
6. Step 6: Final answer
   x = 216,420.00