Finding the Fourth Proportional to 31,329.98, 47,018.31 and 12,610.17

Step by Step Solution

1. Step 1: Write the proportion equation
   31,329.98 : 47,018.31 = 12,610.17 : x
2. Step 2: Convert to fraction form
   31,329.98/47,018.31 = 12,610.17/x
3. Step 3: Cross multiply
   31,329.98x = 47,018.31 × 12,610.17
4. Step 4: Simplify right side
   31,329.98x = 592,908,882.21
5. Step 5: Solve for x
   x = 592,908,882.21/31,329.98
6. Step 6: Final answer
   x = 18,924.65