Finding the Fourth Proportional to 31,528.86, 47,298.15 and 10,747.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,528.86 : 47,298.15 = 10,747.50 : x
2. Step 2: Convert to fraction form
   31,528.86/47,298.15 = 10,747.50/x
3. Step 3: Cross multiply
   31,528.86x = 47,298.15 × 10,747.50
4. Step 4: Simplify right side
   31,528.86x = 508,336,867.13
5. Step 5: Solve for x
   x = 508,336,867.13/31,528.86
6. Step 6: Final answer
   x = 16,122.91