Finding the Fourth Proportional to 7,987.34, 11,981.82 and 3,061.10

Step by Step Solution

1. Step 1: Write the proportion equation
   7,987.34 : 11,981.82 = 3,061.10 : x
2. Step 2: Convert to fraction form
   7,987.34/11,981.82 = 3,061.10/x
3. Step 3: Cross multiply
   7,987.34x = 11,981.82 × 3,061.10
4. Step 4: Simplify right side
   7,987.34x = 36,677,549.20
5. Step 5: Solve for x
   x = 36,677,549.20/7,987.34
6. Step 6: Final answer
   x = 4,591.96