Finding the Fourth Proportional to 92,559, 138,727.32 and 42,570.28

Step by Step Solution

1. Step 1: Write the proportion equation
   92,559 : 138,727.32 = 42,570.28 : x
2. Step 2: Convert to fraction form
   92,559/138,727.32 = 42,570.28/x
3. Step 3: Cross multiply
   92,559x = 138,727.32 × 42,570.28
4. Step 4: Simplify right side
   92,559x = 5,905,660,856.05
5. Step 5: Solve for x
   x = 5,905,660,856.05/92,559
6. Step 6: Final answer
   x = 63,804.29