Finding the Fourth Proportional to 7,870.33, 10,861.82 and 5,877.43

Step by Step Solution

1. Step 1: Write the proportion equation
   7,870.33 : 10,861.82 = 5,877.43 : x
2. Step 2: Convert to fraction form
   7,870.33/10,861.82 = 5,877.43/x
3. Step 3: Cross multiply
   7,870.33x = 10,861.82 × 5,877.43
4. Step 4: Simplify right side
   7,870.33x = 63,839,542.88
5. Step 5: Solve for x
   x = 63,839,542.88/7,870.33
6. Step 6: Final answer
   x = 8,111.42