Finding the Fourth Proportional to 77,134.55, 106,414.34 and 50,267.25

Step by Step Solution

1. Step 1: Write the proportion equation
   77,134.55 : 106,414.34 = 50,267.25 : x
2. Step 2: Convert to fraction form
   77,134.55/106,414.34 = 50,267.25/x
3. Step 3: Cross multiply
   77,134.55x = 106,414.34 × 50,267.25
4. Step 4: Simplify right side
   77,134.55x = 5,349,155,981.03
5. Step 5: Solve for x
   x = 5,349,155,981.03/77,134.55
6. Step 6: Final answer
   x = 69,348.38