Finding the Fourth Proportional to 118,429.54, 163,433.19 and 64,714.56

Step by Step Solution

1. Step 1: Write the proportion equation
   118,429.54 : 163,433.19 = 64,714.56 : x
2. Step 2: Convert to fraction form
   118,429.54/163,433.19 = 64,714.56/x
3. Step 3: Cross multiply
   118,429.54x = 163,433.19 × 64,714.56
4. Step 4: Simplify right side
   118,429.54x = 10,576,506,980.25
5. Step 5: Solve for x
   x = 10,576,506,980.25/118,429.54
6. Step 6: Final answer
   x = 89,306.32