Finding the Fourth Proportional to 42,920, 59,216.56 and 27,020.32

Step by Step Solution

1. Step 1: Write the proportion equation
   42,920 : 59,216.56 = 27,020.32 : x
2. Step 2: Convert to fraction form
   42,920/59,216.56 = 27,020.32/x
3. Step 3: Cross multiply
   42,920x = 59,216.56 × 27,020.32
4. Step 4: Simplify right side
   42,920x = 1,600,050,400.50
5. Step 5: Solve for x
   x = 1,600,050,400.50/42,920
6. Step 6: Final answer
   x = 37,279.83