Finding the Fourth Proportional to 10,087.45, 13,919.37 and 5,610.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,087.45 : 13,919.37 = 5,610.31 : x
2. Step 2: Convert to fraction form
   10,087.45/13,919.37 = 5,610.31/x
3. Step 3: Cross multiply
   10,087.45x = 13,919.37 × 5,610.31
4. Step 4: Simplify right side
   10,087.45x = 78,091,980.70
5. Step 5: Solve for x
   x = 78,091,980.70/10,087.45
6. Step 6: Final answer
   x = 7,741.50