Finding the Fourth Proportional to 9,030.16, 12,457.92 and 5,492.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,030.16 : 12,457.92 = 5,492.80 : x
2. Step 2: Convert to fraction form
   9,030.16/12,457.92 = 5,492.80/x
3. Step 3: Cross multiply
   9,030.16x = 12,457.92 × 5,492.80
4. Step 4: Simplify right side
   9,030.16x = 68,428,862.98
5. Step 5: Solve for x
   x = 68,428,862.98/9,030.16
6. Step 6: Final answer
   x = 7,577.81