Finding the Fourth Proportional to 30,623.94, 42,261.93 and 17,196.30

Step by Step Solution

1. Step 1: Write the proportion equation
   30,623.94 : 42,261.93 = 17,196.30 : x
2. Step 2: Convert to fraction form
   30,623.94/42,261.93 = 17,196.30/x
3. Step 3: Cross multiply
   30,623.94x = 42,261.93 × 17,196.30
4. Step 4: Simplify right side
   30,623.94x = 726,748,826.86
5. Step 5: Solve for x
   x = 726,748,826.86/30,623.94
6. Step 6: Final answer
   x = 23,731.40