Finding the Fourth Proportional to 10,620.48, 15,928.56 and 5,945.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,620.48 : 15,928.56 = 5,945.16 : x
2. Step 2: Convert to fraction form
   10,620.48/15,928.56 = 5,945.16/x
3. Step 3: Cross multiply
   10,620.48x = 15,928.56 × 5,945.16
4. Step 4: Simplify right side
   10,620.48x = 94,697,837.77
5. Step 5: Solve for x
   x = 94,697,837.77/10,620.48
6. Step 6: Final answer
   x = 8,916.53