Finding the Fourth Proportional to 31,422.99, 47,124.46 and 10,359.10

Step by Step Solution

1. Step 1: Write the proportion equation
   31,422.99 : 47,124.46 = 10,359.10 : x
2. Step 2: Convert to fraction form
   31,422.99/47,124.46 = 10,359.10/x
3. Step 3: Cross multiply
   31,422.99x = 47,124.46 × 10,359.10
4. Step 4: Simplify right side
   31,422.99x = 488,166,993.59
5. Step 5: Solve for x
   x = 488,166,993.59/31,422.99
6. Step 6: Final answer
   x = 15,535.35