Finding the Fourth Proportional to 14,311.52, 19,750.89 and 7,938.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,311.52 : 19,750.89 = 7,938.72 : x
2. Step 2: Convert to fraction form
   14,311.52/19,750.89 = 7,938.72/x
3. Step 3: Cross multiply
   14,311.52x = 19,750.89 × 7,938.72
4. Step 4: Simplify right side
   14,311.52x = 156,796,815.23
5. Step 5: Solve for x
   x = 156,796,815.23/14,311.52
6. Step 6: Final answer
   x = 10,955.99