Finding the Fourth Proportional to 22,010.67, 32,959.64 and 12,139.00

Step by Step Solution

1. Step 1: Write the proportion equation
   22,010.67 : 32,959.64 = 12,139.00 : x
2. Step 2: Convert to fraction form
   22,010.67/32,959.64 = 12,139.00/x
3. Step 3: Cross multiply
   22,010.67x = 32,959.64 × 12,139.00
4. Step 4: Simplify right side
   22,010.67x = 400,097,017.91
5. Step 5: Solve for x
   x = 400,097,017.91/22,010.67
6. Step 6: Final answer
   x = 18,177.41