Finding the Fourth Proportional to 92,752.57, 139,112.72 and 42,828.44

Step by Step Solution

1. Step 1: Write the proportion equation
   92,752.57 : 139,112.72 = 42,828.44 : x
2. Step 2: Convert to fraction form
   92,752.57/139,112.72 = 42,828.44/x
3. Step 3: Cross multiply
   92,752.57x = 139,112.72 × 42,828.44
4. Step 4: Simplify right side
   92,752.57x = 5,957,980,567.61
5. Step 5: Solve for x
   x = 5,957,980,567.61/92,752.57
6. Step 6: Final answer
   x = 64,235.21