Finding the Fourth Proportional to 9,998.83, 14,974.89 and 7,904.77

Step by Step Solution

1. Step 1: Write the proportion equation
   9,998.83 : 14,974.89 = 7,904.77 : x
2. Step 2: Convert to fraction form
   9,998.83/14,974.89 = 7,904.77/x
3. Step 3: Cross multiply
   9,998.83x = 14,974.89 × 7,904.77
4. Step 4: Simplify right side
   9,998.83x = 118,373,061.23
5. Step 5: Solve for x
   x = 118,373,061.23/9,998.83
6. Step 6: Final answer
   x = 11,838.69