Finding the Fourth Proportional to 22,142.58, 30,556.04 and 12,070.86

Step by Step Solution

1. Step 1: Write the proportion equation
   22,142.58 : 30,556.04 = 12,070.86 : x
2. Step 2: Convert to fraction form
   22,142.58/30,556.04 = 12,070.86/x
3. Step 3: Cross multiply
   22,142.58x = 30,556.04 × 12,070.86
4. Step 4: Simplify right side
   22,142.58x = 368,837,528.21
5. Step 5: Solve for x
   x = 368,837,528.21/22,142.58
6. Step 6: Final answer
   x = 16,657.39