Finding the Fourth Proportional to 91,291.89, 137,050.60 and 43,306.38

Step by Step Solution

1. Step 1: Write the proportion equation
   91,291.89 : 137,050.60 = 43,306.38 : x
2. Step 2: Convert to fraction form
   91,291.89/137,050.60 = 43,306.38/x
3. Step 3: Cross multiply
   91,291.89x = 137,050.60 × 43,306.38
4. Step 4: Simplify right side
   91,291.89x = 5,935,164,677.58
5. Step 5: Solve for x
   x = 5,935,164,677.58/91,291.89
6. Step 6: Final answer
   x = 65,013.06