Finding the Fourth Proportional to 42,435.31, 63,652.56 and 25,799.93

Step by Step Solution

1. Step 1: Write the proportion equation
   42,435.31 : 63,652.56 = 25,799.93 : x
2. Step 2: Convert to fraction form
   42,435.31/63,652.56 = 25,799.93/x
3. Step 3: Cross multiply
   42,435.31x = 63,652.56 × 25,799.93
4. Step 4: Simplify right side
   42,435.31x = 1,642,231,822.43
5. Step 5: Solve for x
   x = 1,642,231,822.43/42,435.31
6. Step 6: Final answer
   x = 38,699.65