Finding the Fourth Proportional to 22,618.93, 31,215.89 and 12,549.32

Step by Step Solution

1. Step 1: Write the proportion equation
   22,618.93 : 31,215.89 = 12,549.32 : x
2. Step 2: Convert to fraction form
   22,618.93/31,215.89 = 12,549.32/x
3. Step 3: Cross multiply
   22,618.93x = 31,215.89 × 12,549.32
4. Step 4: Simplify right side
   22,618.93x = 391,738,158.80
5. Step 5: Solve for x
   x = 391,738,158.80/22,618.93
6. Step 6: Final answer
   x = 17,319.04