Finding the Fourth Proportional to 42,665.80, 63,971.22 and 17,723.02

Step by Step Solution

1. Step 1: Write the proportion equation
   42,665.80 : 63,971.22 = 17,723.02 : x
2. Step 2: Convert to fraction form
   42,665.80/63,971.22 = 17,723.02/x
3. Step 3: Cross multiply
   42,665.80x = 63,971.22 × 17,723.02
4. Step 4: Simplify right side
   42,665.80x = 1,133,763,211.48
5. Step 5: Solve for x
   x = 1,133,763,211.48/42,665.80
6. Step 6: Final answer
   x = 26,573.12