Finding the Fourth Proportional to 10,063.78, 13,888.18 and 5,587.82

Step by Step Solution

1. Step 1: Write the proportion equation
   10,063.78 : 13,888.18 = 5,587.82 : x
2. Step 2: Convert to fraction form
   10,063.78/13,888.18 = 5,587.82/x
3. Step 3: Cross multiply
   10,063.78x = 13,888.18 × 5,587.82
4. Step 4: Simplify right side
   10,063.78x = 77,604,649.97
5. Step 5: Solve for x
   x = 77,604,649.97/10,063.78
6. Step 6: Final answer
   x = 7,711.28