Finding the Fourth Proportional to 5,778.16, 8,013.40 and 5,417.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,778.16 : 8,013.40 = 5,417.31 : x
2. Step 2: Convert to fraction form
   5,778.16/8,013.40 = 5,417.31/x
3. Step 3: Cross multiply
   5,778.16x = 8,013.40 × 5,417.31
4. Step 4: Simplify right side
   5,778.16x = 43,411,071.95
5. Step 5: Solve for x
   x = 43,411,071.95/5,778.16
6. Step 6: Final answer
   x = 7,512.96