Finding the Fourth Proportional to 22,002.90, 32,989.76 and 7,961.10

Step by Step Solution

1. Step 1: Write the proportion equation
   22,002.90 : 32,989.76 = 7,961.10 : x
2. Step 2: Convert to fraction form
   22,002.90/32,989.76 = 7,961.10/x
3. Step 3: Cross multiply
   22,002.90x = 32,989.76 × 7,961.10
4. Step 4: Simplify right side
   22,002.90x = 262,634,686.21
5. Step 5: Solve for x
   x = 262,634,686.21/22,002.90
6. Step 6: Final answer
   x = 11,936.37