Finding the Fourth Proportional to 75,658, 104,408.76 and 42,124.72

Step by Step Solution

1. Step 1: Write the proportion equation
   75,658 : 104,408.76 = 42,124.72 : x
2. Step 2: Convert to fraction form
   75,658/104,408.76 = 42,124.72/x
3. Step 3: Cross multiply
   75,658x = 104,408.76 × 42,124.72
4. Step 4: Simplify right side
   75,658x = 4,398,189,780.55
5. Step 5: Solve for x
   x = 4,398,189,780.55/75,658
6. Step 6: Final answer
   x = 58,132.51