Finding the Fourth Proportional to 10,224.02, 15,328.85 and 3,978.77

Step by Step Solution

1. Step 1: Write the proportion equation
   10,224.02 : 15,328.85 = 3,978.77 : x
2. Step 2: Convert to fraction form
   10,224.02/15,328.85 = 3,978.77/x
3. Step 3: Cross multiply
   10,224.02x = 15,328.85 × 3,978.77
4. Step 4: Simplify right side
   10,224.02x = 60,989,968.51
5. Step 5: Solve for x
   x = 60,989,968.51/10,224.02
6. Step 6: Final answer
   x = 5,965.36