Finding the Fourth Proportional to 21,470.52, 32,193.90 and 7,422.96

Step by Step Solution

1. Step 1: Write the proportion equation
   21,470.52 : 32,193.90 = 7,422.96 : x
2. Step 2: Convert to fraction form
   21,470.52/32,193.90 = 7,422.96/x
3. Step 3: Cross multiply
   21,470.52x = 32,193.90 × 7,422.96
4. Step 4: Simplify right side
   21,470.52x = 238,974,031.94
5. Step 5: Solve for x
   x = 238,974,031.94/21,470.52
6. Step 6: Final answer
   x = 11,130.33