Finding the Fourth Proportional to 113,105.90, 169,658.73 and 28,866.06

Step by Step Solution

1. Step 1: Write the proportion equation
   113,105.90 : 169,658.73 = 28,866.06 : x
2. Step 2: Convert to fraction form
   113,105.90/169,658.73 = 28,866.06/x
3. Step 3: Cross multiply
   113,105.90x = 169,658.73 × 28,866.06
4. Step 4: Simplify right side
   113,105.90x = 4,897,379,079.70
5. Step 5: Solve for x
   x = 4,897,379,079.70/113,105.90
6. Step 6: Final answer
   x = 43,299.06