Finding the Fourth Proportional to 61,196.20, 91,830.69 and 33,115.68

Step by Step Solution

1. Step 1: Write the proportion equation
   61,196.20 : 91,830.69 = 33,115.68 : x
2. Step 2: Convert to fraction form
   61,196.20/91,830.69 = 33,115.68/x
3. Step 3: Cross multiply
   61,196.20x = 91,830.69 × 33,115.68
4. Step 4: Simplify right side
   61,196.20x = 3,041,035,744.22
5. Step 5: Solve for x
   x = 3,041,035,744.22/61,196.20
6. Step 6: Final answer
   x = 49,693.21