Finding the Fourth Proportional to 111,858.62, 154,364.92 and 61,557.62

Step by Step Solution

1. Step 1: Write the proportion equation
   111,858.62 : 154,364.92 = 61,557.62 : x
2. Step 2: Convert to fraction form
   111,858.62/154,364.92 = 61,557.62/x
3. Step 3: Cross multiply
   111,858.62x = 154,364.92 × 61,557.62
4. Step 4: Simplify right side
   111,858.62x = 9,502,337,086.69
5. Step 5: Solve for x
   x = 9,502,337,086.69/111,858.62
6. Step 6: Final answer
   x = 84,949.53