Finding the Fourth Proportional to 112,838.69, 155,710.22 and 61,842.42

Step by Step Solution

1. Step 1: Write the proportion equation
   112,838.69 : 155,710.22 = 61,842.42 : x
2. Step 2: Convert to fraction form
   112,838.69/155,710.22 = 61,842.42/x
3. Step 3: Cross multiply
   112,838.69x = 155,710.22 × 61,842.42
4. Step 4: Simplify right side
   112,838.69x = 9,629,496,514.32
5. Step 5: Solve for x
   x = 9,629,496,514.32/112,838.69
6. Step 6: Final answer
   x = 85,338.60