Finding the Fourth Proportional to 30,681.06, 42,339.24 and 17,068.80

Step by Step Solution

1. Step 1: Write the proportion equation
   30,681.06 : 42,339.24 = 17,068.80 : x
2. Step 2: Convert to fraction form
   30,681.06/42,339.24 = 17,068.80/x
3. Step 3: Cross multiply
   30,681.06x = 42,339.24 × 17,068.80
4. Step 4: Simplify right side
   30,681.06x = 722,680,019.71
5. Step 5: Solve for x
   x = 722,680,019.71/30,681.06
6. Step 6: Final answer
   x = 23,554.60