Finding the Fourth Proportional to 13,329.50, 19,978.34 and 6,204.15

Step by Step Solution

1. Step 1: Write the proportion equation
   13,329.50 : 19,978.34 = 6,204.15 : x
2. Step 2: Convert to fraction form
   13,329.50/19,978.34 = 6,204.15/x
3. Step 3: Cross multiply
   13,329.50x = 19,978.34 × 6,204.15
4. Step 4: Simplify right side
   13,329.50x = 123,948,618.11
5. Step 5: Solve for x
   x = 123,948,618.11/13,329.50
6. Step 6: Final answer
   x = 9,298.82