Finding the Fourth Proportional to 22,307.06, 30,784.62 and 12,235.86

Step by Step Solution

1. Step 1: Write the proportion equation
   22,307.06 : 30,784.62 = 12,235.86 : x
2. Step 2: Convert to fraction form
   22,307.06/30,784.62 = 12,235.86/x
3. Step 3: Cross multiply
   22,307.06x = 30,784.62 × 12,235.86
4. Step 4: Simplify right side
   22,307.06x = 376,676,300.47
5. Step 5: Solve for x
   x = 376,676,300.47/22,307.06
6. Step 6: Final answer
   x = 16,885.97