Finding the Fourth Proportional to 10,102.79, 13,942.61 and 5,855.00

Step by Step Solution

1. Step 1: Write the proportion equation
   10,102.79 : 13,942.61 = 5,855.00 : x
2. Step 2: Convert to fraction form
   10,102.79/13,942.61 = 5,855.00/x
3. Step 3: Cross multiply
   10,102.79x = 13,942.61 × 5,855.00
4. Step 4: Simplify right side
   10,102.79x = 81,633,882.56
5. Step 5: Solve for x
   x = 81,633,882.56/10,102.79
6. Step 6: Final answer
   x = 8,080.33