Finding the Fourth Proportional to 26,801.04, 40,146.72 and 12,549.12

Step by Step Solution

1. Step 1: Write the proportion equation
   26,801.04 : 40,146.72 = 12,549.12 : x
2. Step 2: Convert to fraction form
   26,801.04/40,146.72 = 12,549.12/x
3. Step 3: Cross multiply
   26,801.04x = 40,146.72 × 12,549.12
4. Step 4: Simplify right side
   26,801.04x = 503,806,006.89
5. Step 5: Solve for x
   x = 503,806,006.89/26,801.04
6. Step 6: Final answer
   x = 18,798.00