Finding the Fourth Proportional to 9,932.99, 13,707.90 and 5,457.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,932.99 : 13,707.90 = 5,457.15 : x
2. Step 2: Convert to fraction form
   9,932.99/13,707.90 = 5,457.15/x
3. Step 3: Cross multiply
   9,932.99x = 13,707.90 × 5,457.15
4. Step 4: Simplify right side
   9,932.99x = 74,806,066.49
5. Step 5: Solve for x
   x = 74,806,066.49/9,932.99
6. Step 6: Final answer
   x = 7,531.08