Finding the Fourth Proportional to 112,809.42, 169,214.52 and 28,569.54

Step by Step Solution

1. Step 1: Write the proportion equation
   112,809.42 : 169,214.52 = 28,569.54 : x
2. Step 2: Convert to fraction form
   112,809.42/169,214.52 = 28,569.54/x
3. Step 3: Cross multiply
   112,809.42x = 169,214.52 × 28,569.54
4. Step 4: Simplify right side
   112,809.42x = 4,834,380,997.72
5. Step 5: Solve for x
   x = 4,834,380,997.72/112,809.42
6. Step 6: Final answer
   x = 42,854.41