Finding the Fourth Proportional to 23,359.16, 32,179.20 and 19,991.18

Step by Step Solution

1. Step 1: Write the proportion equation
   23,359.16 : 32,179.20 = 19,991.18 : x
2. Step 2: Convert to fraction form
   23,359.16/32,179.20 = 19,991.18/x
3. Step 3: Cross multiply
   23,359.16x = 32,179.20 × 19,991.18
4. Step 4: Simplify right side
   23,359.16x = 643,300,179.46
5. Step 5: Solve for x
   x = 643,300,179.46/23,359.16
6. Step 6: Final answer
   x = 27,539.53