Finding the Fourth Proportional to 42,585.39, 63,812.37 and 26,970.21

Step by Step Solution

1. Step 1: Write the proportion equation
   42,585.39 : 63,812.37 = 26,970.21 : x
2. Step 2: Convert to fraction form
   42,585.39/63,812.37 = 26,970.21/x
3. Step 3: Cross multiply
   42,585.39x = 63,812.37 × 26,970.21
4. Step 4: Simplify right side
   42,585.39x = 1,721,033,019.50
5. Step 5: Solve for x
   x = 1,721,033,019.50/42,585.39
6. Step 6: Final answer
   x = 40,413.70