Finding the Fourth Proportional to 31,642.24, 47,468.82 and 12,932.44

Step by Step Solution

1. Step 1: Write the proportion equation
   31,642.24 : 47,468.82 = 12,932.44 : x
2. Step 2: Convert to fraction form
   31,642.24/47,468.82 = 12,932.44/x
3. Step 3: Cross multiply
   31,642.24x = 47,468.82 × 12,932.44
4. Step 4: Simplify right side
   31,642.24x = 613,887,666.52
5. Step 5: Solve for x
   x = 613,887,666.52/31,642.24
6. Step 6: Final answer
   x = 19,400.89