Finding the Fourth Proportional to 112,196.33, 154,830.92 and 64,449.66

Step by Step Solution

1. Step 1: Write the proportion equation
   112,196.33 : 154,830.92 = 64,449.66 : x
2. Step 2: Convert to fraction form
   112,196.33/154,830.92 = 64,449.66/x
3. Step 3: Cross multiply
   112,196.33x = 154,830.92 × 64,449.66
4. Step 4: Simplify right side
   112,196.33x = 9,978,800,151.49
5. Step 5: Solve for x
   x = 9,978,800,151.49/112,196.33
6. Step 6: Final answer
   x = 88,940.52