Finding the Fourth Proportional to 67,188.69, 92,722.59 and 38,513.79

Step by Step Solution

1. Step 1: Write the proportion equation
   67,188.69 : 92,722.59 = 38,513.79 : x
2. Step 2: Convert to fraction form
   67,188.69/92,722.59 = 38,513.79/x
3. Step 3: Cross multiply
   67,188.69x = 92,722.59 × 38,513.79
4. Step 4: Simplify right side
   67,188.69x = 3,571,098,359.52
5. Step 5: Solve for x
   x = 3,571,098,359.52/67,188.69
6. Step 6: Final answer
   x = 53,150.29