Finding the Fourth Proportional to 14,158.80, 19,505.41 and 9,901.91

Step by Step Solution

1. Step 1: Write the proportion equation
   14,158.80 : 19,505.41 = 9,901.91 : x
2. Step 2: Convert to fraction form
   14,158.80/19,505.41 = 9,901.91/x
3. Step 3: Cross multiply
   14,158.80x = 19,505.41 × 9,901.91
4. Step 4: Simplify right side
   14,158.80x = 193,140,838.34
5. Step 5: Solve for x
   x = 193,140,838.34/14,158.80
6. Step 6: Final answer
   x = 13,641.05