Finding the Fourth Proportional to 42,778.02, 59,021.61 and 25,548.36

Step by Step Solution

1. Step 1: Write the proportion equation
   42,778.02 : 59,021.61 = 25,548.36 : x
2. Step 2: Convert to fraction form
   42,778.02/59,021.61 = 25,548.36/x
3. Step 3: Cross multiply
   42,778.02x = 59,021.61 × 25,548.36
4. Step 4: Simplify right side
   42,778.02x = 1,507,905,498.63
5. Step 5: Solve for x
   x = 1,507,905,498.63/42,778.02
6. Step 6: Final answer
   x = 35,249.54