Finding the Fourth Proportional to 112,843.52, 169,243.32 and 42,728.32

Step by Step Solution

1. Step 1: Write the proportion equation
   112,843.52 : 169,243.32 = 42,728.32 : x
2. Step 2: Convert to fraction form
   112,843.52/169,243.32 = 42,728.32/x
3. Step 3: Cross multiply
   112,843.52x = 169,243.32 × 42,728.32
4. Step 4: Simplify right side
   112,843.52x = 7,231,482,734.82
5. Step 5: Solve for x
   x = 7,231,482,734.82/112,843.52
6. Step 6: Final answer
   x = 64,084.16