Finding the Fourth Proportional to 9,348.96, 12,898.80 and 5,570.24

Step by Step Solution

1. Step 1: Write the proportion equation
   9,348.96 : 12,898.80 = 5,570.24 : x
2. Step 2: Convert to fraction form
   9,348.96/12,898.80 = 5,570.24/x
3. Step 3: Cross multiply
   9,348.96x = 12,898.80 × 5,570.24
4. Step 4: Simplify right side
   9,348.96x = 71,849,411.71
5. Step 5: Solve for x
   x = 71,849,411.71/9,348.96
6. Step 6: Final answer
   x = 7,685.28