Finding the Fourth Proportional to 91,768.89, 137,703.49 and 35,611.21

Step by Step Solution

1. Step 1: Write the proportion equation
   91,768.89 : 137,703.49 = 35,611.21 : x
2. Step 2: Convert to fraction form
   91,768.89/137,703.49 = 35,611.21/x
3. Step 3: Cross multiply
   91,768.89x = 137,703.49 × 35,611.21
4. Step 4: Simplify right side
   91,768.89x = 4,903,787,033.55
5. Step 5: Solve for x
   x = 4,903,787,033.55/91,768.89
6. Step 6: Final answer
   x = 53,436.27