Finding the Fourth Proportional to 14,387.39, 21,572.57 and 5,612.06

Step by Step Solution

1. Step 1: Write the proportion equation
   14,387.39 : 21,572.57 = 5,612.06 : x
2. Step 2: Convert to fraction form
   14,387.39/21,572.57 = 5,612.06/x
3. Step 3: Cross multiply
   14,387.39x = 21,572.57 × 5,612.06
4. Step 4: Simplify right side
   14,387.39x = 121,066,421.27
5. Step 5: Solve for x
   x = 121,066,421.27/14,387.39
6. Step 6: Final answer
   x = 8,414.76