Finding the Fourth Proportional to 10,032.72, 13,845.20 and 5,616.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,032.72 : 13,845.20 = 5,616.72 : x
2. Step 2: Convert to fraction form
   10,032.72/13,845.20 = 5,616.72/x
3. Step 3: Cross multiply
   10,032.72x = 13,845.20 × 5,616.72
4. Step 4: Simplify right side
   10,032.72x = 77,764,611.74
5. Step 5: Solve for x
   x = 77,764,611.74/10,032.72
6. Step 6: Final answer
   x = 7,751.10