Finding the Fourth Proportional to 23,452.86, 34,997.46 and 21,357.39

Step by Step Solution

1. Step 1: Write the proportion equation
   23,452.86 : 34,997.46 = 21,357.39 : x
2. Step 2: Convert to fraction form
   23,452.86/34,997.46 = 21,357.39/x
3. Step 3: Cross multiply
   23,452.86x = 34,997.46 × 21,357.39
4. Step 4: Simplify right side
   23,452.86x = 747,454,402.23
5. Step 5: Solve for x
   x = 747,454,402.23/23,452.86
6. Step 6: Final answer
   x = 31,870.50