Finding the Fourth Proportional to 31,530.86, 47,301.15 and 10,749.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,530.86 : 47,301.15 = 10,749.50 : x
2. Step 2: Convert to fraction form
   31,530.86/47,301.15 = 10,749.50/x
3. Step 3: Cross multiply
   31,530.86x = 47,301.15 × 10,749.50
4. Step 4: Simplify right side
   31,530.86x = 508,463,711.93
5. Step 5: Solve for x
   x = 508,463,711.93/31,530.86
6. Step 6: Final answer
   x = 16,125.91