Finding the Fourth Proportional to 150,877.47, 226,316.50 and 56,128.43

Step by Step Solution

1. Step 1: Write the proportion equation
   150,877.47 : 226,316.50 = 56,128.43 : x
2. Step 2: Convert to fraction form
   150,877.47/226,316.50 = 56,128.43/x
3. Step 3: Cross multiply
   150,877.47x = 226,316.50 × 56,128.43
4. Step 4: Simplify right side
   150,877.47x = 12,702,789,828.10
5. Step 5: Solve for x
   x = 12,702,789,828.10/150,877.47
6. Step 6: Final answer
   x = 84,192.75