Finding the Fourth Proportional to 118,379.58, 163,357.88 and 64,654.71

Step by Step Solution

1. Step 1: Write the proportion equation
   118,379.58 : 163,357.88 = 64,654.71 : x
2. Step 2: Convert to fraction form
   118,379.58/163,357.88 = 64,654.71/x
3. Step 3: Cross multiply
   118,379.58x = 163,357.88 × 64,654.71
4. Step 4: Simplify right side
   118,379.58x = 10,561,856,034.34
5. Step 5: Solve for x
   x = 10,561,856,034.34/118,379.58
6. Step 6: Final answer
   x = 89,220.25