Finding the Fourth Proportional to 61,974.72, 85,525.12 and 33,680.42

Step by Step Solution

1. Step 1: Write the proportion equation
   61,974.72 : 85,525.12 = 33,680.42 : x
2. Step 2: Convert to fraction form
   61,974.72/85,525.12 = 33,680.42/x
3. Step 3: Cross multiply
   61,974.72x = 85,525.12 × 33,680.42
4. Step 4: Simplify right side
   61,974.72x = 2,880,521,962.15
5. Step 5: Solve for x
   x = 2,880,521,962.15/61,974.72
6. Step 6: Final answer
   x = 46,478.98