Finding the Fourth Proportional to 9,974.46, 14,843.94 and 9,642.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,974.46 : 14,843.94 = 9,642.25 : x
2. Step 2: Convert to fraction form
   9,974.46/14,843.94 = 9,642.25/x
3. Step 3: Cross multiply
   9,974.46x = 14,843.94 × 9,642.25
4. Step 4: Simplify right side
   9,974.46x = 143,128,980.47
5. Step 5: Solve for x
   x = 143,128,980.47/9,974.46
6. Step 6: Final answer
   x = 14,349.55