Finding the Fourth Proportional to 9,276.30, 12,802.50 and 5,298.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,276.30 : 12,802.50 = 5,298.18 : x
2. Step 2: Convert to fraction form
   9,276.30/12,802.50 = 5,298.18/x
3. Step 3: Cross multiply
   9,276.30x = 12,802.50 × 5,298.18
4. Step 4: Simplify right side
   9,276.30x = 67,829,949.45
5. Step 5: Solve for x
   x = 67,829,949.45/9,276.30
6. Step 6: Final answer
   x = 7,312.18