Finding the Fourth Proportional to 61,639.59, 85,062.78 and 33,345.30

Step by Step Solution

1. Step 1: Write the proportion equation
   61,639.59 : 85,062.78 = 33,345.30 : x
2. Step 2: Convert to fraction form
   61,639.59/85,062.78 = 33,345.30/x
3. Step 3: Cross multiply
   61,639.59x = 85,062.78 × 33,345.30
4. Step 4: Simplify right side
   61,639.59x = 2,836,443,917.93
5. Step 5: Solve for x
   x = 2,836,443,917.93/61,639.59
6. Step 6: Final answer
   x = 46,016.59