Finding the Fourth Proportional to 76,501.50, 105,581.97 and 42,967.50

Step by Step Solution

1. Step 1: Write the proportion equation
   76,501.50 : 105,581.97 = 42,967.50 : x
2. Step 2: Convert to fraction form
   76,501.50/105,581.97 = 42,967.50/x
3. Step 3: Cross multiply
   76,501.50x = 105,581.97 × 42,967.50
4. Step 4: Simplify right side
   76,501.50x = 4,536,593,295.98
5. Step 5: Solve for x
   x = 4,536,593,295.98/76,501.50
6. Step 6: Final answer
   x = 59,300.71