Finding the Fourth Proportional to 14,088.72, 21,131.67 and 3,700.47

Step by Step Solution

1. Step 1: Write the proportion equation
   14,088.72 : 21,131.67 = 3,700.47 : x
2. Step 2: Convert to fraction form
   14,088.72/21,131.67 = 3,700.47/x
3. Step 3: Cross multiply
   14,088.72x = 21,131.67 × 3,700.47
4. Step 4: Simplify right side
   14,088.72x = 78,197,110.88
5. Step 5: Solve for x
   x = 78,197,110.88/14,088.72
6. Step 6: Final answer
   x = 5,550.33