Finding the Fourth Proportional to 42,840.40, 59,116.20 and 25,612.37

Step by Step Solution

1. Step 1: Write the proportion equation
   42,840.40 : 59,116.20 = 25,612.37 : x
2. Step 2: Convert to fraction form
   42,840.40/59,116.20 = 25,612.37/x
3. Step 3: Cross multiply
   42,840.40x = 59,116.20 × 25,612.37
4. Step 4: Simplify right side
   42,840.40x = 1,514,105,987.39
5. Step 5: Solve for x
   x = 1,514,105,987.39/42,840.40
6. Step 6: Final answer
   x = 35,342.95