Finding the Fourth Proportional to 10,070.78, 15,093.39 and 5,690.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,070.78 : 15,093.39 = 5,690.69 : x
2. Step 2: Convert to fraction form
   10,070.78/15,093.39 = 5,690.69/x
3. Step 3: Cross multiply
   10,070.78x = 15,093.39 × 5,690.69
4. Step 4: Simplify right side
   10,070.78x = 85,891,803.54
5. Step 5: Solve for x
   x = 85,891,803.54/10,070.78
6. Step 6: Final answer
   x = 8,528.81