Finding the Fourth Proportional to 113,095.81, 169,649.55 and 28,856.71

Step by Step Solution

1. Step 1: Write the proportion equation
   113,095.81 : 169,649.55 = 28,856.71 : x
2. Step 2: Convert to fraction form
   113,095.81/169,649.55 = 28,856.71/x
3. Step 3: Cross multiply
   113,095.81x = 169,649.55 × 28,856.71
4. Step 4: Simplify right side
   113,095.81x = 4,895,527,441.86
5. Step 5: Solve for x
   x = 4,895,527,441.86/113,095.81
6. Step 6: Final answer
   x = 43,286.55