Finding the Fourth Proportional to 10,100.99, 15,153.79 and 3,081.64

Step by Step Solution

1. Step 1: Write the proportion equation
   10,100.99 : 15,153.79 = 3,081.64 : x
2. Step 2: Convert to fraction form
   10,100.99/15,153.79 = 3,081.64/x
3. Step 3: Cross multiply
   10,100.99x = 15,153.79 × 3,081.64
4. Step 4: Simplify right side
   10,100.99x = 46,698,479.83
5. Step 5: Solve for x
   x = 46,698,479.83/10,100.99
6. Step 6: Final answer
   x = 4,623.16