Finding the Fourth Proportional to 91,747.35, 137,587.98 and 31,759.53

Step by Step Solution

1. Step 1: Write the proportion equation
   91,747.35 : 137,587.98 = 31,759.53 : x
2. Step 2: Convert to fraction form
   91,747.35/137,587.98 = 31,759.53/x
3. Step 3: Cross multiply
   91,747.35x = 137,587.98 × 31,759.53
4. Step 4: Simplify right side
   91,747.35x = 4,369,729,181.59
5. Step 5: Solve for x
   x = 4,369,729,181.59/91,747.35
6. Step 6: Final answer
   x = 47,627.85