Finding the Fourth Proportional to 42,128.10, 63,265.05 and 22,445.10

Step by Step Solution

1. Step 1: Write the proportion equation
   42,128.10 : 63,265.05 = 22,445.10 : x
2. Step 2: Convert to fraction form
   42,128.10/63,265.05 = 22,445.10/x
3. Step 3: Cross multiply
   42,128.10x = 63,265.05 × 22,445.10
4. Step 4: Simplify right side
   42,128.10x = 1,419,990,373.76
5. Step 5: Solve for x
   x = 1,419,990,373.76/42,128.10
6. Step 6: Final answer
   x = 33,706.49