Finding the Fourth Proportional to 5,282.79, 7,290.32 and 2,925.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,282.79 : 7,290.32 = 2,925.15 : x
2. Step 2: Convert to fraction form
   5,282.79/7,290.32 = 2,925.15/x
3. Step 3: Cross multiply
   5,282.79x = 7,290.32 × 2,925.15
4. Step 4: Simplify right side
   5,282.79x = 21,325,279.55
5. Step 5: Solve for x
   x = 21,325,279.55/5,282.79
6. Step 6: Final answer
   x = 4,036.75