Finding the Fourth Proportional to 5,781.30, 7,978.05 and 3,263.34

Step by Step Solution

1. Step 1: Write the proportion equation
   5,781.30 : 7,978.05 = 3,263.34 : x
2. Step 2: Convert to fraction form
   5,781.30/7,978.05 = 3,263.34/x
3. Step 3: Cross multiply
   5,781.30x = 7,978.05 × 3,263.34
4. Step 4: Simplify right side
   5,781.30x = 26,035,089.69
5. Step 5: Solve for x
   x = 26,035,089.69/5,781.30
6. Step 6: Final answer
   x = 4,503.33