Finding the Fourth Proportional to 118,456.50, 163,469.98 and 64,741.51

Step by Step Solution

1. Step 1: Write the proportion equation
   118,456.50 : 163,469.98 = 64,741.51 : x
2. Step 2: Convert to fraction form
   118,456.50/163,469.98 = 64,741.51/x
3. Step 3: Cross multiply
   118,456.50x = 163,469.98 × 64,741.51
4. Step 4: Simplify right side
   118,456.50x = 10,583,293,344.87
5. Step 5: Solve for x
   x = 10,583,293,344.87/118,456.50
6. Step 6: Final answer
   x = 89,343.29