Finding the Fourth Proportional to 117,994.78, 162,832.57 and 64,279.78

Step by Step Solution

1. Step 1: Write the proportion equation
   117,994.78 : 162,832.57 = 64,279.78 : x
2. Step 2: Convert to fraction form
   117,994.78/162,832.57 = 64,279.78/x
3. Step 3: Cross multiply
   117,994.78x = 162,832.57 × 64,279.78
4. Step 4: Simplify right side
   117,994.78x = 10,466,841,776.43
5. Step 5: Solve for x
   x = 10,466,841,776.43/117,994.78
6. Step 6: Final answer
   x = 88,705.97