Finding the Fourth Proportional to 10,079.76, 13,908.54 and 5,603.55

Step by Step Solution

1. Step 1: Write the proportion equation
   10,079.76 : 13,908.54 = 5,603.55 : x
2. Step 2: Convert to fraction form
   10,079.76/13,908.54 = 5,603.55/x
3. Step 3: Cross multiply
   10,079.76x = 13,908.54 × 5,603.55
4. Step 4: Simplify right side
   10,079.76x = 77,937,199.32
5. Step 5: Solve for x
   x = 77,937,199.32/10,079.76
6. Step 6: Final answer
   x = 7,732.05