Finding the Fourth Proportional to 10,750.62, 16,111.17 and 7,987.71

Step by Step Solution

1. Step 1: Write the proportion equation
   10,750.62 : 16,111.17 = 7,987.71 : x
2. Step 2: Convert to fraction form
   10,750.62/16,111.17 = 7,987.71/x
3. Step 3: Cross multiply
   10,750.62x = 16,111.17 × 7,987.71
4. Step 4: Simplify right side
   10,750.62x = 128,691,353.72
5. Step 5: Solve for x
   x = 128,691,353.72/10,750.62
6. Step 6: Final answer
   x = 11,970.60