Finding the Fourth Proportional to 42,606.05, 63,838.44 and 25,915.59

Step by Step Solution

1. Step 1: Write the proportion equation
   42,606.05 : 63,838.44 = 25,915.59 : x
2. Step 2: Convert to fraction form
   42,606.05/63,838.44 = 25,915.59/x
3. Step 3: Cross multiply
   42,606.05x = 63,838.44 × 25,915.59
4. Step 4: Simplify right side
   42,606.05x = 1,654,410,837.28
5. Step 5: Solve for x
   x = 1,654,410,837.28/42,606.05
6. Step 6: Final answer
   x = 38,830.43