Finding the Fourth Proportional to 14,147.96, 19,523.98 and 7,860.20

Step by Step Solution

1. Step 1: Write the proportion equation
   14,147.96 : 19,523.98 = 7,860.20 : x
2. Step 2: Convert to fraction form
   14,147.96/19,523.98 = 7,860.20/x
3. Step 3: Cross multiply
   14,147.96x = 19,523.98 × 7,860.20
4. Step 4: Simplify right side
   14,147.96x = 153,462,387.60
5. Step 5: Solve for x
   x = 153,462,387.60/14,147.96
6. Step 6: Final answer
   x = 10,846.96