Finding the Fourth Proportional to 14,322.71, 21,488.31 and 7,747.13

Step by Step Solution

1. Step 1: Write the proportion equation
   14,322.71 : 21,488.31 = 7,747.13 : x
2. Step 2: Convert to fraction form
   14,322.71/21,488.31 = 7,747.13/x
3. Step 3: Cross multiply
   14,322.71x = 21,488.31 × 7,747.13
4. Step 4: Simplify right side
   14,322.71x = 166,472,623.61
5. Step 5: Solve for x
   x = 166,472,623.61/14,322.71
6. Step 6: Final answer
   x = 11,622.99