Finding the Fourth Proportional to 10,042.76, 13,859.11 and 5,566.61

Step by Step Solution

1. Step 1: Write the proportion equation
   10,042.76 : 13,859.11 = 5,566.61 : x
2. Step 2: Convert to fraction form
   10,042.76/13,859.11 = 5,566.61/x
3. Step 3: Cross multiply
   10,042.76x = 13,859.11 × 5,566.61
4. Step 4: Simplify right side
   10,042.76x = 77,148,260.32
5. Step 5: Solve for x
   x = 77,148,260.32/10,042.76
6. Step 6: Final answer
   x = 7,681.98