Finding the Fourth Proportional to 118,323.98, 163,286.46 and 64,609.04

Step by Step Solution

1. Step 1: Write the proportion equation
   118,323.98 : 163,286.46 = 64,609.04 : x
2. Step 2: Convert to fraction form
   118,323.98/163,286.46 = 64,609.04/x
3. Step 3: Cross multiply
   118,323.98x = 163,286.46 × 64,609.04
4. Step 4: Simplify right side
   118,323.98x = 10,549,780,609.17
5. Step 5: Solve for x
   x = 10,549,780,609.17/118,323.98
6. Step 6: Final answer
   x = 89,160.12