Finding the Fourth Proportional to 111,892.19, 154,411.25 and 61,591.19

Step by Step Solution

1. Step 1: Write the proportion equation
   111,892.19 : 154,411.25 = 61,591.19 : x
2. Step 2: Convert to fraction form
   111,892.19/154,411.25 = 61,591.19/x
3. Step 3: Cross multiply
   111,892.19x = 154,411.25 × 61,591.19
4. Step 4: Simplify right side
   111,892.19x = 9,510,371,556.88
5. Step 5: Solve for x
   x = 9,510,371,556.88/111,892.19
6. Step 6: Final answer
   x = 84,995.85