Finding the Fourth Proportional to 14,131.62, 19,494.27 and 8,385.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,131.62 : 19,494.27 = 8,385.72 : x
2. Step 2: Convert to fraction form
   14,131.62/19,494.27 = 8,385.72/x
3. Step 3: Cross multiply
   14,131.62x = 19,494.27 × 8,385.72
4. Step 4: Simplify right side
   14,131.62x = 163,473,489.82
5. Step 5: Solve for x
   x = 163,473,489.82/14,131.62
6. Step 6: Final answer
   x = 11,567.92