Finding the Fourth Proportional to 118,460.56, 163,464.32 and 64,742.18

Step by Step Solution

1. Step 1: Write the proportion equation
   118,460.56 : 163,464.32 = 64,742.18 : x
2. Step 2: Convert to fraction form
   118,460.56/163,464.32 = 64,742.18/x
3. Step 3: Cross multiply
   118,460.56x = 163,464.32 × 64,742.18
4. Step 4: Simplify right side
   118,460.56x = 10,583,036,429.02
5. Step 5: Solve for x
   x = 10,583,036,429.02/118,460.56
6. Step 6: Final answer
   x = 89,338.06