Finding the Fourth Proportional to 78,071.94, 107,703.81 and 49,760.01

Step by Step Solution

1. Step 1: Write the proportion equation
   78,071.94 : 107,703.81 = 49,760.01 : x
2. Step 2: Convert to fraction form
   78,071.94/107,703.81 = 49,760.01/x
3. Step 3: Cross multiply
   78,071.94x = 107,703.81 × 49,760.01
4. Step 4: Simplify right side
   78,071.94x = 5,359,342,662.64
5. Step 5: Solve for x
   x = 5,359,342,662.64/78,071.94
6. Step 6: Final answer
   x = 68,646.21