Finding the Fourth Proportional to 121,570.30, 182,269.05 and 55,042.30

Step by Step Solution

1. Step 1: Write the proportion equation
   121,570.30 : 182,269.05 = 55,042.30 : x
2. Step 2: Convert to fraction form
   121,570.30/182,269.05 = 55,042.30/x
3. Step 3: Cross multiply
   121,570.30x = 182,269.05 × 55,042.30
4. Step 4: Simplify right side
   121,570.30x = 10,032,507,730.82
5. Step 5: Solve for x
   x = 10,032,507,730.82/121,570.30
6. Step 6: Final answer
   x = 82,524.33