Finding the Fourth Proportional to 118,673.51, 163,773.60 and 64,958.56

Step by Step Solution

1. Step 1: Write the proportion equation
   118,673.51 : 163,773.60 = 64,958.56 : x
2. Step 2: Convert to fraction form
   118,673.51/163,773.60 = 64,958.56/x
3. Step 3: Cross multiply
   118,673.51x = 163,773.60 × 64,958.56
4. Step 4: Simplify right side
   118,673.51x = 10,638,497,222.02
5. Step 5: Solve for x
   x = 10,638,497,222.02/118,673.51
6. Step 6: Final answer
   x = 89,645.09