Finding the Fourth Proportional to 76,418.22, 105,452.38 and 42,424.72

Step by Step Solution

1. Step 1: Write the proportion equation
   76,418.22 : 105,452.38 = 42,424.72 : x
2. Step 2: Convert to fraction form
   76,418.22/105,452.38 = 42,424.72/x
3. Step 3: Cross multiply
   76,418.22x = 105,452.38 × 42,424.72
4. Step 4: Simplify right side
   76,418.22x = 4,473,787,694.83
5. Step 5: Solve for x
   x = 4,473,787,694.83/76,418.22
6. Step 6: Final answer
   x = 58,543.47