Finding the Fourth Proportional to 77,404.49, 106,719.31 and 50,132.39

Step by Step Solution

1. Step 1: Write the proportion equation
   77,404.49 : 106,719.31 = 50,132.39 : x
2. Step 2: Convert to fraction form
   77,404.49/106,719.31 = 50,132.39/x
3. Step 3: Cross multiply
   77,404.49x = 106,719.31 × 50,132.39
4. Step 4: Simplify right side
   77,404.49x = 5,350,094,069.45
5. Step 5: Solve for x
   x = 5,350,094,069.45/77,404.49
6. Step 6: Final answer
   x = 69,118.65