Finding the Fourth Proportional to 8,073.60, 12,111.82 and 3,691.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,073.60 : 12,111.82 = 3,691.50 : x
2. Step 2: Convert to fraction form
   8,073.60/12,111.82 = 3,691.50/x
3. Step 3: Cross multiply
   8,073.60x = 12,111.82 × 3,691.50
4. Step 4: Simplify right side
   8,073.60x = 44,710,783.53
5. Step 5: Solve for x
   x = 44,710,783.53/8,073.60
6. Step 6: Final answer
   x = 5,537.90