Finding the Fourth Proportional to 93,267.50, 139,768.76 and 71,839.19

Step by Step Solution

1. Step 1: Write the proportion equation
   93,267.50 : 139,768.76 = 71,839.19 : x
2. Step 2: Convert to fraction form
   93,267.50/139,768.76 = 71,839.19/x
3. Step 3: Cross multiply
   93,267.50x = 139,768.76 × 71,839.19
4. Step 4: Simplify right side
   93,267.50x = 10,040,875,034.72
5. Step 5: Solve for x
   x = 10,040,875,034.72/93,267.50
6. Step 6: Final answer
   x = 107,656.75