Finding the Fourth Proportional to 5,513.60, 8,258.52 and 2,587.52

Step by Step Solution

1. Step 1: Write the proportion equation
   5,513.60 : 8,258.52 = 2,587.52 : x
2. Step 2: Convert to fraction form
   5,513.60/8,258.52 = 2,587.52/x
3. Step 3: Cross multiply
   5,513.60x = 8,258.52 × 2,587.52
4. Step 4: Simplify right side
   5,513.60x = 21,369,085.67
5. Step 5: Solve for x
   x = 21,369,085.67/5,513.60
6. Step 6: Final answer
   x = 3,875.70