Finding the Fourth Proportional to 118,389.50, 163,375.65 and 64,673.46

Step by Step Solution

1. Step 1: Write the proportion equation
   118,389.50 : 163,375.65 = 64,673.46 : x
2. Step 2: Convert to fraction form
   118,389.50/163,375.65 = 64,673.46/x
3. Step 3: Cross multiply
   118,389.50x = 163,375.65 × 64,673.46
4. Step 4: Simplify right side
   118,389.50x = 10,566,068,565.25
5. Step 5: Solve for x
   x = 10,566,068,565.25/118,389.50
6. Step 6: Final answer
   x = 89,248.36