Finding the Fourth Proportional to 28,498.33, 42,754.17 and 8,776.45

Step by Step Solution

1. Step 1: Write the proportion equation
   28,498.33 : 42,754.17 = 8,776.45 : x
2. Step 2: Convert to fraction form
   28,498.33/42,754.17 = 8,776.45/x
3. Step 3: Cross multiply
   28,498.33x = 42,754.17 × 8,776.45
4. Step 4: Simplify right side
   28,498.33x = 375,229,835.30
5. Step 5: Solve for x
   x = 375,229,835.30/28,498.33
6. Step 6: Final answer
   x = 13,166.73