Finding the Fourth Proportional to 8,788.52, 12,130.98 and 5,807

Step by Step Solution

1. Step 1: Write the proportion equation
   8,788.52 : 12,130.98 = 5,807 : x
2. Step 2: Convert to fraction form
   8,788.52/12,130.98 = 5,807/x
3. Step 3: Cross multiply
   8,788.52x = 12,130.98 × 5,807
4. Step 4: Simplify right side
   8,788.52x = 70,444,600.86
5. Step 5: Solve for x
   x = 70,444,600.86/8,788.52
6. Step 6: Final answer
   x = 8,015.52