Finding the Fourth Proportional to 61,362.86, 91,909.38 and 50,712.18

Step by Step Solution

1. Step 1: Write the proportion equation
   61,362.86 : 91,909.38 = 50,712.18 : x
2. Step 2: Convert to fraction form
   61,362.86/91,909.38 = 50,712.18/x
3. Step 3: Cross multiply
   61,362.86x = 91,909.38 × 50,712.18
4. Step 4: Simplify right side
   61,362.86x = 4,660,925,022.25
5. Step 5: Solve for x
   x = 4,660,925,022.25/61,362.86
6. Step 6: Final answer
   x = 75,956.78