Finding the Fourth Proportional to 121,629.30, 182,357.55 and 55,101.30

Step by Step Solution

1. Step 1: Write the proportion equation
   121,629.30 : 182,357.55 = 55,101.30 : x
2. Step 2: Convert to fraction form
   121,629.30/182,357.55 = 55,101.30/x
3. Step 3: Cross multiply
   121,629.30x = 182,357.55 × 55,101.30
4. Step 4: Simplify right side
   121,629.30x = 10,048,138,069.82
5. Step 5: Solve for x
   x = 10,048,138,069.82/121,629.30
6. Step 6: Final answer
   x = 82,612.81