Finding the Fourth Proportional to 14,300.80, 21,405.12 and 7,365.76

Step by Step Solution

1. Step 1: Write the proportion equation
   14,300.80 : 21,405.12 = 7,365.76 : x
2. Step 2: Convert to fraction form
   14,300.80/21,405.12 = 7,365.76/x
3. Step 3: Cross multiply
   14,300.80x = 21,405.12 × 7,365.76
4. Step 4: Simplify right side
   14,300.80x = 157,664,976.69
5. Step 5: Solve for x
   x = 157,664,976.69/14,300.80
6. Step 6: Final answer
   x = 11,024.91