Finding the Fourth Proportional to 22,458.50, 30,992.96 and 12,386.86

Step by Step Solution

1. Step 1: Write the proportion equation
   22,458.50 : 30,992.96 = 12,386.86 : x
2. Step 2: Convert to fraction form
   22,458.50/30,992.96 = 12,386.86/x
3. Step 3: Cross multiply
   22,458.50x = 30,992.96 × 12,386.86
4. Step 4: Simplify right side
   22,458.50x = 383,905,409.99
5. Step 5: Solve for x
   x = 383,905,409.99/22,458.50
6. Step 6: Final answer
   x = 17,093.99