Finding the Fourth Proportional to 10,081.30, 15,113.90 and 3,840.07

Step by Step Solution

1. Step 1: Write the proportion equation
   10,081.30 : 15,113.90 = 3,840.07 : x
2. Step 2: Convert to fraction form
   10,081.30/15,113.90 = 3,840.07/x
3. Step 3: Cross multiply
   10,081.30x = 15,113.90 × 3,840.07
4. Step 4: Simplify right side
   10,081.30x = 58,038,414.77
5. Step 5: Solve for x
   x = 58,038,414.77/10,081.30
6. Step 6: Final answer
   x = 5,757.04