Finding the Fourth Proportional to 78,839.31, 108,781.59 and 50,148.52

Step by Step Solution

1. Step 1: Write the proportion equation
   78,839.31 : 108,781.59 = 50,148.52 : x
2. Step 2: Convert to fraction form
   78,839.31/108,781.59 = 50,148.52/x
3. Step 3: Cross multiply
   78,839.31x = 108,781.59 × 50,148.52
4. Step 4: Simplify right side
   78,839.31x = 5,455,235,741.75
5. Step 5: Solve for x
   x = 5,455,235,741.75/78,839.31
6. Step 6: Final answer
   x = 69,194.36