Finding the Fourth Proportional to 76,372.05, 105,390.67 and 42,382.02

Step by Step Solution

1. Step 1: Write the proportion equation
   76,372.05 : 105,390.67 = 42,382.02 : x
2. Step 2: Convert to fraction form
   76,372.05/105,390.67 = 42,382.02/x
3. Step 3: Cross multiply
   76,372.05x = 105,390.67 × 42,382.02
4. Step 4: Simplify right side
   76,372.05x = 4,466,668,744.89
5. Step 5: Solve for x
   x = 4,466,668,744.89/76,372.05
6. Step 6: Final answer
   x = 58,485.65