Finding the Fourth Proportional to 117,971.16, 162,797.94 and 64,255.56

Step by Step Solution

1. Step 1: Write the proportion equation
   117,971.16 : 162,797.94 = 64,255.56 : x
2. Step 2: Convert to fraction form
   117,971.16/162,797.94 = 64,255.56/x
3. Step 3: Cross multiply
   117,971.16x = 162,797.94 × 64,255.56
4. Step 4: Simplify right side
   117,971.16x = 10,460,672,801.55
5. Step 5: Solve for x
   x = 10,460,672,801.55/117,971.16
6. Step 6: Final answer
   x = 88,671.44