Finding the Fourth Proportional to 23,279.06, 32,141.16 and 21,791.90

Step by Step Solution

1. Step 1: Write the proportion equation
   23,279.06 : 32,141.16 = 21,791.90 : x
2. Step 2: Convert to fraction form
   23,279.06/32,141.16 = 21,791.90/x
3. Step 3: Cross multiply
   23,279.06x = 32,141.16 × 21,791.90
4. Step 4: Simplify right side
   23,279.06x = 700,416,783.90
5. Step 5: Solve for x
   x = 700,416,783.90/23,279.06
6. Step 6: Final answer
   x = 30,087.85