Finding the Fourth Proportional to 112,160.42, 168,272.41 and 45,648.29

Step by Step Solution

1. Step 1: Write the proportion equation
   112,160.42 : 168,272.41 = 45,648.29 : x
2. Step 2: Convert to fraction form
   112,160.42/168,272.41 = 45,648.29/x
3. Step 3: Cross multiply
   112,160.42x = 168,272.41 × 45,648.29
4. Step 4: Simplify right side
   112,160.42x = 7,681,346,929.32
5. Step 5: Solve for x
   x = 7,681,346,929.32/112,160.42
6. Step 6: Final answer
   x = 68,485.36