Finding the Fourth Proportional to 112,627.49, 168,763.37 and 91,464.55

Step by Step Solution

1. Step 1: Write the proportion equation
   112,627.49 : 168,763.37 = 91,464.55 : x
2. Step 2: Convert to fraction form
   112,627.49/168,763.37 = 91,464.55/x
3. Step 3: Cross multiply
   112,627.49x = 168,763.37 × 91,464.55
4. Step 4: Simplify right side
   112,627.49x = 15,435,864,814.30
5. Step 5: Solve for x
   x = 15,435,864,814.30/112,627.49
6. Step 6: Final answer
   x = 137,052.38