Finding the Fourth Proportional to 10,039.76, 13,854.53 and 5,563.58

Step by Step Solution

1. Step 1: Write the proportion equation
   10,039.76 : 13,854.53 = 5,563.58 : x
2. Step 2: Convert to fraction form
   10,039.76/13,854.53 = 5,563.58/x
3. Step 3: Cross multiply
   10,039.76x = 13,854.53 × 5,563.58
4. Step 4: Simplify right side
   10,039.76x = 77,080,688.93
5. Step 5: Solve for x
   x = 77,080,688.93/10,039.76
6. Step 6: Final answer
   x = 7,677.55