Finding the Fourth Proportional to 10,081.89, 15,113.61 and 4,238.91

Step by Step Solution

1. Step 1: Write the proportion equation
   10,081.89 : 15,113.61 = 4,238.91 : x
2. Step 2: Convert to fraction form
   10,081.89/15,113.61 = 4,238.91/x
3. Step 3: Cross multiply
   10,081.89x = 15,113.61 × 4,238.91
4. Step 4: Simplify right side
   10,081.89x = 64,065,232.57
5. Step 5: Solve for x
   x = 64,065,232.57/10,081.89
6. Step 6: Final answer
   x = 6,354.49