Finding the Fourth Proportional to 10,087.14, 13,920.21 and 5,610.63

Step by Step Solution

1. Step 1: Write the proportion equation
   10,087.14 : 13,920.21 = 5,610.63 : x
2. Step 2: Convert to fraction form
   10,087.14/13,920.21 = 5,610.63/x
3. Step 3: Cross multiply
   10,087.14x = 13,920.21 × 5,610.63
4. Step 4: Simplify right side
   10,087.14x = 78,101,200.03
5. Step 5: Solve for x
   x = 78,101,200.03/10,087.14
6. Step 6: Final answer
   x = 7,742.65