Finding the Fourth Proportional to 112,228.48, 154,869.82 and 61,238.17

Step by Step Solution

1. Step 1: Write the proportion equation
   112,228.48 : 154,869.82 = 61,238.17 : x
2. Step 2: Convert to fraction form
   112,228.48/154,869.82 = 61,238.17/x
3. Step 3: Cross multiply
   112,228.48x = 154,869.82 × 61,238.17
4. Step 4: Simplify right side
   112,228.48x = 9,483,944,405.52
5. Step 5: Solve for x
   x = 9,483,944,405.52/112,228.48
6. Step 6: Final answer
   x = 84,505.68