Finding the Fourth Proportional to 10,147.61, 14,003.15 and 5,670.47

Step by Step Solution

1. Step 1: Write the proportion equation
   10,147.61 : 14,003.15 = 5,670.47 : x
2. Step 2: Convert to fraction form
   10,147.61/14,003.15 = 5,670.47/x
3. Step 3: Cross multiply
   10,147.61x = 14,003.15 × 5,670.47
4. Step 4: Simplify right side
   10,147.61x = 79,404,448.64
5. Step 5: Solve for x
   x = 79,404,448.64/10,147.61
6. Step 6: Final answer
   x = 7,824.94