Finding the Fourth Proportional to 8,820.93, 12,178.55 and 5,840.78

Step by Step Solution

1. Step 1: Write the proportion equation
   8,820.93 : 12,178.55 = 5,840.78 : x
2. Step 2: Convert to fraction form
   8,820.93/12,178.55 = 5,840.78/x
3. Step 3: Cross multiply
   8,820.93x = 12,178.55 × 5,840.78
4. Step 4: Simplify right side
   8,820.93x = 71,132,184.98
5. Step 5: Solve for x
   x = 71,132,184.98/8,820.93
6. Step 6: Final answer
   x = 8,064.02