Finding the Fourth Proportional to 42,863.86, 59,142.56 and 25,870.86

Step by Step Solution

1. Step 1: Write the proportion equation
   42,863.86 : 59,142.56 = 25,870.86 : x
2. Step 2: Convert to fraction form
   42,863.86/59,142.56 = 25,870.86/x
3. Step 3: Cross multiply
   42,863.86x = 59,142.56 × 25,870.86
4. Step 4: Simplify right side
   42,863.86x = 1,530,068,889.80
5. Step 5: Solve for x
   x = 1,530,068,889.80/42,863.86
6. Step 6: Final answer
   x = 35,696.01