Finding the Fourth Proportional to 10,147.05, 14,002.89 and 5,670.80

Step by Step Solution

1. Step 1: Write the proportion equation
   10,147.05 : 14,002.89 = 5,670.80 : x
2. Step 2: Convert to fraction form
   10,147.05/14,002.89 = 5,670.80/x
3. Step 3: Cross multiply
   10,147.05x = 14,002.89 × 5,670.80
4. Step 4: Simplify right side
   10,147.05x = 79,407,612.99
5. Step 5: Solve for x
   x = 79,407,612.99/10,147.05
6. Step 6: Final answer
   x = 7,825.68