Finding the Fourth Proportional to 10,116.78, 13,962.99 and 5,870.55

Step by Step Solution

1. Step 1: Write the proportion equation
   10,116.78 : 13,962.99 = 5,870.55 : x
2. Step 2: Convert to fraction form
   10,116.78/13,962.99 = 5,870.55/x
3. Step 3: Cross multiply
   10,116.78x = 13,962.99 × 5,870.55
4. Step 4: Simplify right side
   10,116.78x = 81,970,430.94
5. Step 5: Solve for x
   x = 81,970,430.94/10,116.78
6. Step 6: Final answer
   x = 8,102.42