Finding the Fourth Proportional to 42,408.78, 63,825.93 and 31,933.08

Step by Step Solution

1. Step 1: Write the proportion equation
   42,408.78 : 63,825.93 = 31,933.08 : x
2. Step 2: Convert to fraction form
   42,408.78/63,825.93 = 31,933.08/x
3. Step 3: Cross multiply
   42,408.78x = 63,825.93 × 31,933.08
4. Step 4: Simplify right side
   42,408.78x = 2,038,158,528.76
5. Step 5: Solve for x
   x = 2,038,158,528.76/42,408.78
6. Step 6: Final answer
   x = 48,059.82