Finding the Fourth Proportional to 57,782.72, 79,764.71 and 35,128.94

Step by Step Solution

1. Step 1: Write the proportion equation
   57,782.72 : 79,764.71 = 35,128.94 : x
2. Step 2: Convert to fraction form
   57,782.72/79,764.71 = 35,128.94/x
3. Step 3: Cross multiply
   57,782.72x = 79,764.71 × 35,128.94
4. Step 4: Simplify right side
   57,782.72x = 2,802,049,635.32
5. Step 5: Solve for x
   x = 2,802,049,635.32/57,782.72
6. Step 6: Final answer
   x = 48,492.87