Finding the Fourth Proportional to 6,061.80, 8,363.34 and 5,381.40

Step by Step Solution

1. Step 1: Write the proportion equation
   6,061.80 : 8,363.34 = 5,381.40 : x
2. Step 2: Convert to fraction form
   6,061.80/8,363.34 = 5,381.40/x
3. Step 3: Cross multiply
   6,061.80x = 8,363.34 × 5,381.40
4. Step 4: Simplify right side
   6,061.80x = 45,006,477.88
5. Step 5: Solve for x
   x = 45,006,477.88/6,061.80
6. Step 6: Final answer
   x = 7,424.61