Finding the Fourth Proportional to 10,109.30, 15,156.77 and 3,864.05

Step by Step Solution

1. Step 1: Write the proportion equation
   10,109.30 : 15,156.77 = 3,864.05 : x
2. Step 2: Convert to fraction form
   10,109.30/15,156.77 = 3,864.05/x
3. Step 3: Cross multiply
   10,109.30x = 15,156.77 × 3,864.05
4. Step 4: Simplify right side
   10,109.30x = 58,566,517.12
5. Step 5: Solve for x
   x = 58,566,517.12/10,109.30
6. Step 6: Final answer
   x = 5,793.33