Finding the Fourth Proportional to 14,158.72, 21,238.56 and 3,770.48

Step by Step Solution

1. Step 1: Write the proportion equation
   14,158.72 : 21,238.56 = 3,770.48 : x
2. Step 2: Convert to fraction form
   14,158.72/21,238.56 = 3,770.48/x
3. Step 3: Cross multiply
   14,158.72x = 21,238.56 × 3,770.48
4. Step 4: Simplify right side
   14,158.72x = 80,079,565.71
5. Step 5: Solve for x
   x = 80,079,565.71/14,158.72
6. Step 6: Final answer
   x = 5,655.85