Finding the Fourth Proportional to 9,631.83, 14,447.79 and 2,611.89

Step by Step Solution

1. Step 1: Write the proportion equation
   9,631.83 : 14,447.79 = 2,611.89 : x
2. Step 2: Convert to fraction form
   9,631.83/14,447.79 = 2,611.89/x
3. Step 3: Cross multiply
   9,631.83x = 14,447.79 × 2,611.89
4. Step 4: Simplify right side
   9,631.83x = 37,736,038.22
5. Step 5: Solve for x
   x = 37,736,038.22/9,631.83
6. Step 6: Final answer
   x = 3,917.85