Finding the Fourth Proportional to 118,612.52, 163,687.32 and 64,902.23

Step by Step Solution

1. Step 1: Write the proportion equation
   118,612.52 : 163,687.32 = 64,902.23 : x
2. Step 2: Convert to fraction form
   118,612.52/163,687.32 = 64,902.23/x
3. Step 3: Cross multiply
   118,612.52x = 163,687.32 × 64,902.23
4. Step 4: Simplify right side
   118,612.52x = 10,623,672,090.72
5. Step 5: Solve for x
   x = 10,623,672,090.72/118,612.52
6. Step 6: Final answer
   x = 89,566.19