Finding the Fourth Proportional to 10,181.16, 15,271.61 and 2,785.59

Step by Step Solution

1. Step 1: Write the proportion equation
   10,181.16 : 15,271.61 = 2,785.59 : x
2. Step 2: Convert to fraction form
   10,181.16/15,271.61 = 2,785.59/x
3. Step 3: Cross multiply
   10,181.16x = 15,271.61 × 2,785.59
4. Step 4: Simplify right side
   10,181.16x = 42,540,430.17
5. Step 5: Solve for x
   x = 42,540,430.17/10,181.16
6. Step 6: Final answer
   x = 4,178.35