Finding the Fourth Proportional to 117,906.78, 162,713.43 and 64,193.34

Step by Step Solution

1. Step 1: Write the proportion equation
   117,906.78 : 162,713.43 = 64,193.34 : x
2. Step 2: Convert to fraction form
   117,906.78/162,713.43 = 64,193.34/x
3. Step 3: Cross multiply
   117,906.78x = 162,713.43 × 64,193.34
4. Step 4: Simplify right side
   117,906.78x = 10,445,118,534.56
5. Step 5: Solve for x
   x = 10,445,118,534.56/117,906.78
6. Step 6: Final answer
   x = 88,587.94