Finding the Fourth Proportional to 8,799.03, 12,139.63 and 5,019.47

Step by Step Solution

1. Step 1: Write the proportion equation
   8,799.03 : 12,139.63 = 5,019.47 : x
2. Step 2: Convert to fraction form
   8,799.03/12,139.63 = 5,019.47/x
3. Step 3: Cross multiply
   8,799.03x = 12,139.63 × 5,019.47
4. Step 4: Simplify right side
   8,799.03x = 60,934,545.22
5. Step 5: Solve for x
   x = 60,934,545.22/8,799.03
6. Step 6: Final answer
   x = 6,925.14