Finding the Fourth Proportional to 117,782.55, 162,541.22 and 64,067.72

Step by Step Solution

1. Step 1: Write the proportion equation
   117,782.55 : 162,541.22 = 64,067.72 : x
2. Step 2: Convert to fraction form
   117,782.55/162,541.22 = 64,067.72/x
3. Step 3: Cross multiply
   117,782.55x = 162,541.22 × 64,067.72
4. Step 4: Simplify right side
   117,782.55x = 10,413,644,238.37
5. Step 5: Solve for x
   x = 10,413,644,238.37/117,782.55
6. Step 6: Final answer
   x = 88,414.15