Finding the Fourth Proportional to 76,250.57, 105,226.02 and 42,259.62

Step by Step Solution

1. Step 1: Write the proportion equation
   76,250.57 : 105,226.02 = 42,259.62 : x
2. Step 2: Convert to fraction form
   76,250.57/105,226.02 = 42,259.62/x
3. Step 3: Cross multiply
   76,250.57x = 105,226.02 × 42,259.62
4. Step 4: Simplify right side
   76,250.57x = 4,446,812,013.91
5. Step 5: Solve for x
   x = 4,446,812,013.91/76,250.57
6. Step 6: Final answer
   x = 58,318.41