Finding the Fourth Proportional to 23,453.86, 34,998.95 and 21,358.39

Step by Step Solution

1. Step 1: Write the proportion equation
   23,453.86 : 34,998.95 = 21,358.39 : x
2. Step 2: Convert to fraction form
   23,453.86/34,998.95 = 21,358.39/x
3. Step 3: Cross multiply
   23,453.86x = 34,998.95 × 21,358.39
4. Step 4: Simplify right side
   23,453.86x = 747,521,223.69
5. Step 5: Solve for x
   x = 747,521,223.69/23,453.86
6. Step 6: Final answer
   x = 31,871.99