Finding the Fourth Proportional to 13,807.52, 20,691.98 and 7,468.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,807.52 : 20,691.98 = 7,468.72 : x
2. Step 2: Convert to fraction form
   13,807.52/20,691.98 = 7,468.72/x
3. Step 3: Cross multiply
   13,807.52x = 20,691.98 × 7,468.72
4. Step 4: Simplify right side
   13,807.52x = 154,542,563.60
5. Step 5: Solve for x
   x = 154,542,563.60/13,807.52
6. Step 6: Final answer
   x = 11,192.63