Finding the Fourth Proportional to 10,076.76, 13,904.40 and 5,600.55

Step by Step Solution

1. Step 1: Write the proportion equation
   10,076.76 : 13,904.40 = 5,600.55 : x
2. Step 2: Convert to fraction form
   10,076.76/13,904.40 = 5,600.55/x
3. Step 3: Cross multiply
   10,076.76x = 13,904.40 × 5,600.55
4. Step 4: Simplify right side
   10,076.76x = 77,872,287.42
5. Step 5: Solve for x
   x = 77,872,287.42/10,076.76
6. Step 6: Final answer
   x = 7,727.91