Finding the Fourth Proportional to 10,251.18, 15,357.52 and 5,855.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,251.18 : 15,357.52 = 5,855.30 : x
2. Step 2: Convert to fraction form
   10,251.18/15,357.52 = 5,855.30/x
3. Step 3: Cross multiply
   10,251.18x = 15,357.52 × 5,855.30
4. Step 4: Simplify right side
   10,251.18x = 89,922,886.86
5. Step 5: Solve for x
   x = 89,922,886.86/10,251.18
6. Step 6: Final answer
   x = 8,771.95