Finding the Fourth Proportional to 10,063.72, 13,887.24 and 5,587.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,063.72 : 13,887.24 = 5,587.12 : x
2. Step 2: Convert to fraction form
   10,063.72/13,887.24 = 5,587.12/x
3. Step 3: Cross multiply
   10,063.72x = 13,887.24 × 5,587.12
4. Step 4: Simplify right side
   10,063.72x = 77,589,672.76
5. Step 5: Solve for x
   x = 77,589,672.76/10,063.72
6. Step 6: Final answer
   x = 7,709.84