Finding the Fourth Proportional to 10,970.30, 16,436.55 and 5,114.90

Step by Step Solution

1. Step 1: Write the proportion equation
   10,970.30 : 16,436.55 = 5,114.90 : x
2. Step 2: Convert to fraction form
   10,970.30/16,436.55 = 5,114.90/x
3. Step 3: Cross multiply
   10,970.30x = 16,436.55 × 5,114.90
4. Step 4: Simplify right side
   10,970.30x = 84,071,309.60
5. Step 5: Solve for x
   x = 84,071,309.60/10,970.30
6. Step 6: Final answer
   x = 7,663.54