Finding the Fourth Proportional to 57,116.48, 78,929.17 and 42,944.72

Step by Step Solution

1. Step 1: Write the proportion equation
   57,116.48 : 78,929.17 = 42,944.72 : x
2. Step 2: Convert to fraction form
   57,116.48/78,929.17 = 42,944.72/x
3. Step 3: Cross multiply
   57,116.48x = 78,929.17 × 42,944.72
4. Step 4: Simplify right side
   57,116.48x = 3,389,590,603.47
5. Step 5: Solve for x
   x = 3,389,590,603.47/57,116.48
6. Step 6: Final answer
   x = 59,345.23