Finding the Fourth Proportional to 78,817.89, 108,768.68 and 50,523.58

Step by Step Solution

1. Step 1: Write the proportion equation
   78,817.89 : 108,768.68 = 50,523.58 : x
2. Step 2: Convert to fraction form
   78,817.89/108,768.68 = 50,523.58/x
3. Step 3: Cross multiply
   78,817.89x = 108,768.68 × 50,523.58
4. Step 4: Simplify right side
   78,817.89x = 5,495,382,561.63
5. Step 5: Solve for x
   x = 5,495,382,561.63/78,817.89
6. Step 6: Final answer
   x = 69,722.53