Finding the Fourth Proportional to 31,490.83, 47,238.29 and 10,432.29

Step by Step Solution

1. Step 1: Write the proportion equation
   31,490.83 : 47,238.29 = 10,432.29 : x
2. Step 2: Convert to fraction form
   31,490.83/47,238.29 = 10,432.29/x
3. Step 3: Cross multiply
   31,490.83x = 47,238.29 × 10,432.29
4. Step 4: Simplify right side
   31,490.83x = 492,803,704.49
5. Step 5: Solve for x
   x = 492,803,704.49/31,490.83
6. Step 6: Final answer
   x = 15,649.12