Finding the Fourth Proportional to 10,930.08, 16,389.12 and 4,688.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,930.08 : 16,389.12 = 4,688.16 : x
2. Step 2: Convert to fraction form
   10,930.08/16,389.12 = 4,688.16/x
3. Step 3: Cross multiply
   10,930.08x = 16,389.12 × 4,688.16
4. Step 4: Simplify right side
   10,930.08x = 76,834,816.82
5. Step 5: Solve for x
   x = 76,834,816.82/10,930.08
6. Step 6: Final answer
   x = 7,029.67