Finding the Fourth Proportional to 10,948.88, 15,109.46 and 5,980.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,948.88 : 15,109.46 = 5,980.88 : x
2. Step 2: Convert to fraction form
   10,948.88/15,109.46 = 5,980.88/x
3. Step 3: Cross multiply
   10,948.88x = 15,109.46 × 5,980.88
4. Step 4: Simplify right side
   10,948.88x = 90,367,761.67
5. Step 5: Solve for x
   x = 90,367,761.67/10,948.88
6. Step 6: Final answer
   x = 8,253.61