Finding the Fourth Proportional to 28,272.74, 42,401.81 and 8,546.00

Step by Step Solution

1. Step 1: Write the proportion equation
   28,272.74 : 42,401.81 = 8,546.00 : x
2. Step 2: Convert to fraction form
   28,272.74/42,401.81 = 8,546.00/x
3. Step 3: Cross multiply
   28,272.74x = 42,401.81 × 8,546.00
4. Step 4: Simplify right side
   28,272.74x = 362,365,613.52
5. Step 5: Solve for x
   x = 362,365,613.52/28,272.74
6. Step 6: Final answer
   x = 12,816.79