Finding the Fourth Proportional to 111,196.96, 153,449.61 and 63,442.60

Step by Step Solution

1. Step 1: Write the proportion equation
   111,196.96 : 153,449.61 = 63,442.60 : x
2. Step 2: Convert to fraction form
   111,196.96/153,449.61 = 63,442.60/x
3. Step 3: Cross multiply
   111,196.96x = 153,449.61 × 63,442.60
4. Step 4: Simplify right side
   111,196.96x = 9,735,242,227.39
5. Step 5: Solve for x
   x = 9,735,242,227.39/111,196.96
6. Step 6: Final answer
   x = 87,549.54