Finding the Fourth Proportional to 118,613.02, 163,688.01 and 64,902.73

Step by Step Solution

1. Step 1: Write the proportion equation
   118,613.02 : 163,688.01 = 64,902.73 : x
2. Step 2: Convert to fraction form
   118,613.02/163,688.01 = 64,902.73/x
3. Step 3: Cross multiply
   118,613.02x = 163,688.01 × 64,902.73
4. Step 4: Simplify right side
   118,613.02x = 10,623,798,717.27
5. Step 5: Solve for x
   x = 10,623,798,717.27/118,613.02
6. Step 6: Final answer
   x = 89,566.88