Finding the Fourth Proportional to 10,627.77, 15,941.69 and 5,079.86

Step by Step Solution

1. Step 1: Write the proportion equation
   10,627.77 : 15,941.69 = 5,079.86 : x
2. Step 2: Convert to fraction form
   10,627.77/15,941.69 = 5,079.86/x
3. Step 3: Cross multiply
   10,627.77x = 15,941.69 × 5,079.86
4. Step 4: Simplify right side
   10,627.77x = 80,981,448.26
5. Step 5: Solve for x
   x = 80,981,448.26/10,627.77
6. Step 6: Final answer
   x = 7,619.80