Finding the Fourth Proportional to 12,282.02, 18,426.67 and 5,712.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,282.02 : 18,426.67 = 5,712.10 : x
2. Step 2: Convert to fraction form
   12,282.02/18,426.67 = 5,712.10/x
3. Step 3: Cross multiply
   12,282.02x = 18,426.67 × 5,712.10
4. Step 4: Simplify right side
   12,282.02x = 105,254,981.71
5. Step 5: Solve for x
   x = 105,254,981.71/12,282.02
6. Step 6: Final answer
   x = 8,569.84