Finding the Fourth Proportional to 12,948.88, 17,868.80 and 7,359.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,948.88 : 17,868.80 = 7,359.76 : x
2. Step 2: Convert to fraction form
   12,948.88/17,868.80 = 7,359.76/x
3. Step 3: Cross multiply
   12,948.88x = 17,868.80 × 7,359.76
4. Step 4: Simplify right side
   12,948.88x = 131,510,079.49
5. Step 5: Solve for x
   x = 131,510,079.49/12,948.88
6. Step 6: Final answer
   x = 10,156.10