Finding the Fourth Proportional to 10,210.95, 15,312.46 and 3,970.13

Step by Step Solution

1. Step 1: Write the proportion equation
   10,210.95 : 15,312.46 = 3,970.13 : x
2. Step 2: Convert to fraction form
   10,210.95/15,312.46 = 3,970.13/x
3. Step 3: Cross multiply
   10,210.95x = 15,312.46 × 3,970.13
4. Step 4: Simplify right side
   10,210.95x = 60,792,456.82
5. Step 5: Solve for x
   x = 60,792,456.82/10,210.95
6. Step 6: Final answer
   x = 5,953.65