Finding the Fourth Proportional to 113,228.48, 169,829.76 and 30,128.96

Step by Step Solution

1. Step 1: Write the proportion equation
   113,228.48 : 169,829.76 = 30,128.96 : x
2. Step 2: Convert to fraction form
   113,228.48/169,829.76 = 30,128.96/x
3. Step 3: Cross multiply
   113,228.48x = 169,829.76 × 30,128.96
4. Step 4: Simplify right side
   113,228.48x = 5,116,794,045.85
5. Step 5: Solve for x
   x = 5,116,794,045.85/113,228.48
6. Step 6: Final answer
   x = 45,189.99