Finding the Fourth Proportional to 108,958.78, 163,448.79 and 42,404.32

Step by Step Solution

1. Step 1: Write the proportion equation
   108,958.78 : 163,448.79 = 42,404.32 : x
2. Step 2: Convert to fraction form
   108,958.78/163,448.79 = 42,404.32/x
3. Step 3: Cross multiply
   108,958.78x = 163,448.79 × 42,404.32
4. Step 4: Simplify right side
   108,958.78x = 6,930,934,794.77
5. Step 5: Solve for x
   x = 6,930,934,794.77/108,958.78
6. Step 6: Final answer
   x = 63,610.61