Finding the Fourth Proportional to 10,350.72, 15,549.96 and 5,978.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,350.72 : 15,549.96 = 5,978.88 : x
2. Step 2: Convert to fraction form
   10,350.72/15,549.96 = 5,978.88/x
3. Step 3: Cross multiply
   10,350.72x = 15,549.96 × 5,978.88
4. Step 4: Simplify right side
   10,350.72x = 92,971,344.84
5. Step 5: Solve for x
   x = 92,971,344.84/10,350.72
6. Step 6: Final answer
   x = 8,982.11