Finding the Fourth Proportional to 91,981.46, 137,856.82 and 39,329.14

Step by Step Solution

1. Step 1: Write the proportion equation
   91,981.46 : 137,856.82 = 39,329.14 : x
2. Step 2: Convert to fraction form
   91,981.46/137,856.82 = 39,329.14/x
3. Step 3: Cross multiply
   91,981.46x = 137,856.82 × 39,329.14
4. Step 4: Simplify right side
   91,981.46x = 5,421,790,173.73
5. Step 5: Solve for x
   x = 5,421,790,173.73/91,981.46
6. Step 6: Final answer
   x = 58,944.38