Finding the Fourth Proportional to 42,641.40, 58,859.82 and 25,655.16

Step by Step Solution

1. Step 1: Write the proportion equation
   42,641.40 : 58,859.82 = 25,655.16 : x
2. Step 2: Convert to fraction form
   42,641.40/58,859.82 = 25,655.16/x
3. Step 3: Cross multiply
   42,641.40x = 58,859.82 × 25,655.16
4. Step 4: Simplify right side
   42,641.40x = 1,510,058,099.67
5. Step 5: Solve for x
   x = 1,510,058,099.67/42,641.40
6. Step 6: Final answer
   x = 35,412.96