Finding the Fourth Proportional to 30,738.06, 42,415 and 17,308.98

Step by Step Solution

1. Step 1: Write the proportion equation
   30,738.06 : 42,415 = 17,308.98 : x
2. Step 2: Convert to fraction form
   30,738.06/42,415 = 17,308.98/x
3. Step 3: Cross multiply
   30,738.06x = 42,415 × 17,308.98
4. Step 4: Simplify right side
   30,738.06x = 734,160,386.70
5. Step 5: Solve for x
   x = 734,160,386.70/30,738.06
6. Step 6: Final answer
   x = 23,884.41