Finding the Fourth Proportional to 90,667.98, 125,117.73 and 50,381.55

Step by Step Solution

1. Step 1: Write the proportion equation
   90,667.98 : 125,117.73 = 50,381.55 : x
2. Step 2: Convert to fraction form
   90,667.98/125,117.73 = 50,381.55/x
3. Step 3: Cross multiply
   90,667.98x = 125,117.73 × 50,381.55
4. Step 4: Simplify right side
   90,667.98x = 6,303,625,169.88
5. Step 5: Solve for x
   x = 6,303,625,169.88/90,667.98
6. Step 6: Final answer
   x = 69,524.27