Finding the Fourth Proportional to 14,123.52, 19,490.40 and 8,154.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,123.52 : 19,490.40 = 8,154.72 : x
2. Step 2: Convert to fraction form
   14,123.52/19,490.40 = 8,154.72/x
3. Step 3: Cross multiply
   14,123.52x = 19,490.40 × 8,154.72
4. Step 4: Simplify right side
   14,123.52x = 158,938,754.69
5. Step 5: Solve for x
   x = 158,938,754.69/14,123.52
6. Step 6: Final answer
   x = 11,253.48