Finding the Fourth Proportional to 12,879.32, 19,325.82 and 5,088.20

Step by Step Solution

1. Step 1: Write the proportion equation
   12,879.32 : 19,325.82 = 5,088.20 : x
2. Step 2: Convert to fraction form
   12,879.32/19,325.82 = 5,088.20/x
3. Step 3: Cross multiply
   12,879.32x = 19,325.82 × 5,088.20
4. Step 4: Simplify right side
   12,879.32x = 98,333,637.32
5. Step 5: Solve for x
   x = 98,333,637.32/12,879.32
6. Step 6: Final answer
   x = 7,635.00