Finding the Fourth Proportional to 111,290.12, 166,882.38 and 64,557.32

Step by Step Solution

1. Step 1: Write the proportion equation
   111,290.12 : 166,882.38 = 64,557.32 : x
2. Step 2: Convert to fraction form
   111,290.12/166,882.38 = 64,557.32/x
3. Step 3: Cross multiply
   111,290.12x = 166,882.38 × 64,557.32
4. Step 4: Simplify right side
   111,290.12x = 10,773,479,208.02
5. Step 5: Solve for x
   x = 10,773,479,208.02/111,290.12
6. Step 6: Final answer
   x = 96,805.35