Finding the Fourth Proportional to 60,915.80, 91,152.27 and 50,286.98

Step by Step Solution

1. Step 1: Write the proportion equation
   60,915.80 : 91,152.27 = 50,286.98 : x
2. Step 2: Convert to fraction form
   60,915.80/91,152.27 = 50,286.98/x
3. Step 3: Cross multiply
   60,915.80x = 91,152.27 × 50,286.98
4. Step 4: Simplify right side
   60,915.80x = 4,583,772,606.33
5. Step 5: Solve for x
   x = 4,583,772,606.33/60,915.80
6. Step 6: Final answer
   x = 75,247.68