Finding the Fourth Proportional to 42,458, 63,238.50 and 40,237.52

Step by Step Solution

1. Step 1: Write the proportion equation
   42,458 : 63,238.50 = 40,237.52 : x
2. Step 2: Convert to fraction form
   42,458/63,238.50 = 40,237.52/x
3. Step 3: Cross multiply
   42,458x = 63,238.50 × 40,237.52
4. Step 4: Simplify right side
   42,458x = 2,544,560,408.52
5. Step 5: Solve for x
   x = 2,544,560,408.52/42,458
6. Step 6: Final answer
   x = 59,931.24