Finding the Fourth Proportional to 10,155.58, 14,014.60 and 5,679.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,155.58 : 14,014.60 = 5,679.28 : x
2. Step 2: Convert to fraction form
   10,155.58/14,014.60 = 5,679.28/x
3. Step 3: Cross multiply
   10,155.58x = 14,014.60 × 5,679.28
4. Step 4: Simplify right side
   10,155.58x = 79,592,739.02
5. Step 5: Solve for x
   x = 79,592,739.02/10,155.58
6. Step 6: Final answer
   x = 7,837.34