Finding the Fourth Proportional to 91,488.28, 137,298.02 and 38,934.68

Step by Step Solution

1. Step 1: Write the proportion equation
   91,488.28 : 137,298.02 = 38,934.68 : x
2. Step 2: Convert to fraction form
   91,488.28/137,298.02 = 38,934.68/x
3. Step 3: Cross multiply
   91,488.28x = 137,298.02 × 38,934.68
4. Step 4: Simplify right side
   91,488.28x = 5,345,654,473.33
5. Step 5: Solve for x
   x = 5,345,654,473.33/91,488.28
6. Step 6: Final answer
   x = 58,429.94