Finding the Fourth Proportional to 91,654.38, 137,447.82 and 31,667.47

Step by Step Solution

1. Step 1: Write the proportion equation
   91,654.38 : 137,447.82 = 31,667.47 : x
2. Step 2: Convert to fraction form
   91,654.38/137,447.82 = 31,667.47/x
3. Step 3: Cross multiply
   91,654.38x = 137,447.82 × 31,667.47
4. Step 4: Simplify right side
   91,654.38x = 4,352,624,372.80
5. Step 5: Solve for x
   x = 4,352,624,372.80/91,654.38
6. Step 6: Final answer
   x = 47,489.54