Finding the Fourth Proportional to 22,715.83, 34,064.01 and 7,920.37

Step by Step Solution

1. Step 1: Write the proportion equation
   22,715.83 : 34,064.01 = 7,920.37 : x
2. Step 2: Convert to fraction form
   22,715.83/34,064.01 = 7,920.37/x
3. Step 3: Cross multiply
   22,715.83x = 34,064.01 × 7,920.37
4. Step 4: Simplify right side
   22,715.83x = 269,799,562.88
5. Step 5: Solve for x
   x = 269,799,562.88/22,715.83
6. Step 6: Final answer
   x = 11,877.16