Finding the Fourth Proportional to 76,625.39, 105,743.57 and 42,635.31

Step by Step Solution

1. Step 1: Write the proportion equation
   76,625.39 : 105,743.57 = 42,635.31 : x
2. Step 2: Convert to fraction form
   76,625.39/105,743.57 = 42,635.31/x
3. Step 3: Cross multiply
   76,625.39x = 105,743.57 × 42,635.31
4. Step 4: Simplify right side
   76,625.39x = 4,508,409,872.55
5. Step 5: Solve for x
   x = 4,508,409,872.55/76,625.39
6. Step 6: Final answer
   x = 58,837.02