Finding the Fourth Proportional to 42,380.10, 63,559.50 and 17,427.12

Step by Step Solution

1. Step 1: Write the proportion equation
   42,380.10 : 63,559.50 = 17,427.12 : x
2. Step 2: Convert to fraction form
   42,380.10/63,559.50 = 17,427.12/x
3. Step 3: Cross multiply
   42,380.10x = 63,559.50 × 17,427.12
4. Step 4: Simplify right side
   42,380.10x = 1,107,659,033.64
5. Step 5: Solve for x
   x = 1,107,659,033.64/42,380.10
6. Step 6: Final answer
   x = 26,136.30