Finding the Fourth Proportional to 78,731.94, 108,667.59 and 50,045.99

Step by Step Solution

1. Step 1: Write the proportion equation
   78,731.94 : 108,667.59 = 50,045.99 : x
2. Step 2: Convert to fraction form
   78,731.94/108,667.59 = 50,045.99/x
3. Step 3: Cross multiply
   78,731.94x = 108,667.59 × 50,045.99
4. Step 4: Simplify right side
   78,731.94x = 5,438,377,122.46
5. Step 5: Solve for x
   x = 5,438,377,122.46/78,731.94
6. Step 6: Final answer
   x = 69,074.60