Finding the Fourth Proportional to 9,985.86, 14,874.12 and 9,480.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,985.86 : 14,874.12 = 9,480.42 : x
2. Step 2: Convert to fraction form
   9,985.86/14,874.12 = 9,480.42/x
3. Step 3: Cross multiply
   9,985.86x = 14,874.12 × 9,480.42
4. Step 4: Simplify right side
   9,985.86x = 141,012,904.73
5. Step 5: Solve for x
   x = 141,012,904.73/9,985.86
6. Step 6: Final answer
   x = 14,121.26