Finding the Fourth Proportional to 76,683.57, 105,732.81 and 52,496.16

Step by Step Solution

1. Step 1: Write the proportion equation
   76,683.57 : 105,732.81 = 52,496.16 : x
2. Step 2: Convert to fraction form
   76,683.57/105,732.81 = 52,496.16/x
3. Step 3: Cross multiply
   76,683.57x = 105,732.81 × 52,496.16
4. Step 4: Simplify right side
   76,683.57x = 5,550,566,511.01
5. Step 5: Solve for x
   x = 5,550,566,511.01/76,683.57
6. Step 6: Final answer
   x = 72,382.73