Finding the Fourth Proportional to 111,209.42, 153,479.98 and 63,469.90

Step by Step Solution

1. Step 1: Write the proportion equation
   111,209.42 : 153,479.98 = 63,469.90 : x
2. Step 2: Convert to fraction form
   111,209.42/153,479.98 = 63,469.90/x
3. Step 3: Cross multiply
   111,209.42x = 153,479.98 × 63,469.90
4. Step 4: Simplify right side
   111,209.42x = 9,741,358,982.60
5. Step 5: Solve for x
   x = 9,741,358,982.60/111,209.42
6. Step 6: Final answer
   x = 87,594.73