Finding the Fourth Proportional to 61,933.63, 85,468.86 and 33,639.31

Step by Step Solution

1. Step 1: Write the proportion equation
   61,933.63 : 85,468.86 = 33,639.31 : x
2. Step 2: Convert to fraction form
   61,933.63/85,468.86 = 33,639.31/x
3. Step 3: Cross multiply
   61,933.63x = 85,468.86 × 33,639.31
4. Step 4: Simplify right side
   61,933.63x = 2,875,113,476.89
5. Step 5: Solve for x
   x = 2,875,113,476.89/61,933.63
6. Step 6: Final answer
   x = 46,422.49