Finding the Fourth Proportional to 81,174.72, 112,020 and 45,365.28

Step by Step Solution

1. Step 1: Write the proportion equation
   81,174.72 : 112,020 = 45,365.28 : x
2. Step 2: Convert to fraction form
   81,174.72/112,020 = 45,365.28/x
3. Step 3: Cross multiply
   81,174.72x = 112,020 × 45,365.28
4. Step 4: Simplify right side
   81,174.72x = 5,081,818,665.60
5. Step 5: Solve for x
   x = 5,081,818,665.60/81,174.72
6. Step 6: Final answer
   x = 62,603.46