Finding the Fourth Proportional to 42,860.07, 64,258.96 and 17,907.25

Step by Step Solution

1. Step 1: Write the proportion equation
   42,860.07 : 64,258.96 = 17,907.25 : x
2. Step 2: Convert to fraction form
   42,860.07/64,258.96 = 17,907.25/x
3. Step 3: Cross multiply
   42,860.07x = 64,258.96 × 17,907.25
4. Step 4: Simplify right side
   42,860.07x = 1,150,701,466.88
5. Step 5: Solve for x
   x = 1,150,701,466.88/42,860.07
6. Step 6: Final answer
   x = 26,847.87