Finding the Fourth Proportional to 92,744.44, 139,100.51 and 42,820.28

Step by Step Solution

1. Step 1: Write the proportion equation
   92,744.44 : 139,100.51 = 42,820.28 : x
2. Step 2: Convert to fraction form
   92,744.44/139,100.51 = 42,820.28/x
3. Step 3: Cross multiply
   92,744.44x = 139,100.51 × 42,820.28
4. Step 4: Simplify right side
   92,744.44x = 5,956,322,786.34
5. Step 5: Solve for x
   x = 5,956,322,786.34/92,744.44
6. Step 6: Final answer
   x = 64,222.96