Finding the Fourth Proportional to 22,142.61, 30,555.88 and 12,070.83

Step by Step Solution

1. Step 1: Write the proportion equation
   22,142.61 : 30,555.88 = 12,070.83 : x
2. Step 2: Convert to fraction form
   22,142.61/30,555.88 = 12,070.83/x
3. Step 3: Cross multiply
   22,142.61x = 30,555.88 × 12,070.83
4. Step 4: Simplify right side
   22,142.61x = 368,834,619.85
5. Step 5: Solve for x
   x = 368,834,619.85/22,142.61
6. Step 6: Final answer
   x = 16,657.24