Finding the Fourth Proportional to 91,778.13, 137,667.67 and 41,824.32

Step by Step Solution

1. Step 1: Write the proportion equation
   91,778.13 : 137,667.67 = 41,824.32 : x
2. Step 2: Convert to fraction form
   91,778.13/137,667.67 = 41,824.32/x
3. Step 3: Cross multiply
   91,778.13x = 137,667.67 × 41,824.32
4. Step 4: Simplify right side
   91,778.13x = 5,757,856,062.92
5. Step 5: Solve for x
   x = 5,757,856,062.92/91,778.13
6. Step 6: Final answer
   x = 62,736.69