Finding the Fourth Proportional to 76,327.76, 105,323.44 and 42,328

Step by Step Solution

1. Step 1: Write the proportion equation
   76,327.76 : 105,323.44 = 42,328 : x
2. Step 2: Convert to fraction form
   76,327.76/105,323.44 = 42,328/x
3. Step 3: Cross multiply
   76,327.76x = 105,323.44 × 42,328
4. Step 4: Simplify right side
   76,327.76x = 4,458,130,568.32
5. Step 5: Solve for x
   x = 4,458,130,568.32/76,327.76
6. Step 6: Final answer
   x = 58,407.72