Finding the Fourth Proportional to 42,597.56, 63,926.22 and 17,638.04

Step by Step Solution

1. Step 1: Write the proportion equation
   42,597.56 : 63,926.22 = 17,638.04 : x
2. Step 2: Convert to fraction form
   42,597.56/63,926.22 = 17,638.04/x
3. Step 3: Cross multiply
   42,597.56x = 63,926.22 × 17,638.04
4. Step 4: Simplify right side
   42,597.56x = 1,127,533,225.41
5. Step 5: Solve for x
   x = 1,127,533,225.41/42,597.56
6. Step 6: Final answer
   x = 26,469.43