Finding the Fourth Proportional to 49,458.03, 74,181.57 and 13,920.48

Step by Step Solution

1. Step 1: Write the proportion equation
   49,458.03 : 74,181.57 = 13,920.48 : x
2. Step 2: Convert to fraction form
   49,458.03/74,181.57 = 13,920.48/x
3. Step 3: Cross multiply
   49,458.03x = 74,181.57 × 13,920.48
4. Step 4: Simplify right side
   49,458.03x = 1,032,643,061.55
5. Step 5: Solve for x
   x = 1,032,643,061.55/49,458.03
6. Step 6: Final answer
   x = 20,879.18