Finding the Fourth Proportional to 10,613.32, 15,897.25 and 5,599.86

Step by Step Solution

1. Step 1: Write the proportion equation
   10,613.32 : 15,897.25 = 5,599.86 : x
2. Step 2: Convert to fraction form
   10,613.32/15,897.25 = 5,599.86/x
3. Step 3: Cross multiply
   10,613.32x = 15,897.25 × 5,599.86
4. Step 4: Simplify right side
   10,613.32x = 89,022,374.39
5. Step 5: Solve for x
   x = 89,022,374.39/10,613.32
6. Step 6: Final answer
   x = 8,387.80