Finding the Fourth Proportional to 30,670.72, 42,327.26 and 17,060.20

Step by Step Solution

1. Step 1: Write the proportion equation
   30,670.72 : 42,327.26 = 17,060.20 : x
2. Step 2: Convert to fraction form
   30,670.72/42,327.26 = 17,060.20/x
3. Step 3: Cross multiply
   30,670.72x = 42,327.26 × 17,060.20
4. Step 4: Simplify right side
   30,670.72x = 722,111,521.05
5. Step 5: Solve for x
   x = 722,111,521.05/30,670.72
6. Step 6: Final answer
   x = 23,544.00