Finding the Fourth Proportional to 9,085.98, 13,630.89 and 2,929.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,085.98 : 13,630.89 = 2,929.50 : x
2. Step 2: Convert to fraction form
   9,085.98/13,630.89 = 2,929.50/x
3. Step 3: Cross multiply
   9,085.98x = 13,630.89 × 2,929.50
4. Step 4: Simplify right side
   9,085.98x = 39,931,692.26
5. Step 5: Solve for x
   x = 39,931,692.26/9,085.98
6. Step 6: Final answer
   x = 4,394.87