Finding the Fourth Proportional to 42,918.88, 59,214.06 and 25,009.78

Step by Step Solution

1. Step 1: Write the proportion equation
   42,918.88 : 59,214.06 = 25,009.78 : x
2. Step 2: Convert to fraction form
   42,918.88/59,214.06 = 25,009.78/x
3. Step 3: Cross multiply
   42,918.88x = 59,214.06 × 25,009.78
4. Step 4: Simplify right side
   42,918.88x = 1,480,930,613.51
5. Step 5: Solve for x
   x = 1,480,930,613.51/42,918.88
6. Step 6: Final answer
   x = 34,505.34