Finding the Fourth Proportional to 117,906.76, 162,714.72 and 64,192.69

Step by Step Solution

1. Step 1: Write the proportion equation
   117,906.76 : 162,714.72 = 64,192.69 : x
2. Step 2: Convert to fraction form
   117,906.76/162,714.72 = 64,192.69/x
3. Step 3: Cross multiply
   117,906.76x = 162,714.72 × 64,192.69
4. Step 4: Simplify right side
   117,906.76x = 10,445,095,579.40
5. Step 5: Solve for x
   x = 10,445,095,579.40/117,906.76
6. Step 6: Final answer
   x = 88,587.76