Finding the Fourth Proportional to 67,940.81, 101,914.76 and 20,554.71

Step by Step Solution

1. Step 1: Write the proportion equation
   67,940.81 : 101,914.76 = 20,554.71 : x
2. Step 2: Convert to fraction form
   67,940.81/101,914.76 = 20,554.71/x
3. Step 3: Cross multiply
   67,940.81x = 101,914.76 × 20,554.71
4. Step 4: Simplify right side
   67,940.81x = 2,094,828,336.52
5. Step 5: Solve for x
   x = 2,094,828,336.52/67,940.81
6. Step 6: Final answer
   x = 30,833.14