Finding the Fourth Proportional to 42,210.83, 58,225.57 and 27,870.80

Step by Step Solution

1. Step 1: Write the proportion equation
   42,210.83 : 58,225.57 = 27,870.80 : x
2. Step 2: Convert to fraction form
   42,210.83/58,225.57 = 27,870.80/x
3. Step 3: Cross multiply
   42,210.83x = 58,225.57 × 27,870.80
4. Step 4: Simplify right side
   42,210.83x = 1,622,792,855.55
5. Step 5: Solve for x
   x = 1,622,792,855.55/42,210.83
6. Step 6: Final answer
   x = 38,444.94