Finding the Fourth Proportional to 10,076.28, 13,903.61 and 5,599.91

Step by Step Solution

1. Step 1: Write the proportion equation
   10,076.28 : 13,903.61 = 5,599.91 : x
2. Step 2: Convert to fraction form
   10,076.28/13,903.61 = 5,599.91/x
3. Step 3: Cross multiply
   10,076.28x = 13,903.61 × 5,599.91
4. Step 4: Simplify right side
   10,076.28x = 77,858,867.16
5. Step 5: Solve for x
   x = 77,858,867.16/10,076.28
6. Step 6: Final answer
   x = 7,726.95