Finding the Fourth Proportional to 57,007.45, 78,680.06 and 33,147.98

Step by Step Solution

1. Step 1: Write the proportion equation
   57,007.45 : 78,680.06 = 33,147.98 : x
2. Step 2: Convert to fraction form
   57,007.45/78,680.06 = 33,147.98/x
3. Step 3: Cross multiply
   57,007.45x = 78,680.06 × 33,147.98
4. Step 4: Simplify right side
   57,007.45x = 2,608,085,358.07
5. Step 5: Solve for x
   x = 2,608,085,358.07/57,007.45
6. Step 6: Final answer
   x = 45,749.91