Finding the Fourth Proportional to 113,105.33, 169,657.85 and 28,865.50

Step by Step Solution

1. Step 1: Write the proportion equation
   113,105.33 : 169,657.85 = 28,865.50 : x
2. Step 2: Convert to fraction form
   113,105.33/169,657.85 = 28,865.50/x
3. Step 3: Cross multiply
   113,105.33x = 169,657.85 × 28,865.50
4. Step 4: Simplify right side
   113,105.33x = 4,897,257,820.89
5. Step 5: Solve for x
   x = 4,897,257,820.89/113,105.33
6. Step 6: Final answer
   x = 43,298.21