Finding the Fourth Proportional to 10,089.83, 15,134.78 and 3,069.90

Step by Step Solution

1. Step 1: Write the proportion equation
   10,089.83 : 15,134.78 = 3,069.90 : x
2. Step 2: Convert to fraction form
   10,089.83/15,134.78 = 3,069.90/x
3. Step 3: Cross multiply
   10,089.83x = 15,134.78 × 3,069.90
4. Step 4: Simplify right side
   10,089.83x = 46,462,268.80
5. Step 5: Solve for x
   x = 46,462,268.80/10,089.83
6. Step 6: Final answer
   x = 4,604.86