Finding the Fourth Proportional to 92,745.32, 139,101.82 and 42,821.16

Step by Step Solution

1. Step 1: Write the proportion equation
   92,745.32 : 139,101.82 = 42,821.16 : x
2. Step 2: Convert to fraction form
   92,745.32/139,101.82 = 42,821.16/x
3. Step 3: Cross multiply
   92,745.32x = 139,101.82 × 42,821.16
4. Step 4: Simplify right side
   92,745.32x = 5,956,501,290.51
5. Step 5: Solve for x
   x = 5,956,501,290.51/92,745.32
6. Step 6: Final answer
   x = 64,224.28