Finding the Fourth Proportional to 14,483,443.20, 21,727,789.20 and 7,276,840.80

Step by Step Solution

1. Step 1: Write the proportion equation
   14,483,443.20 : 21,727,789.20 = 7,276,840.80 : x
2. Step 2: Convert to fraction form
   14,483,443.20/21,727,789.20 = 7,276,840.80/x
3. Step 3: Cross multiply
   14,483,443.20x = 21,727,789.20 × 7,276,840.80
4. Step 4: Simplify right side
   14,483,443.20x = 158,109,662,944,359.34
5. Step 5: Solve for x
   x = 158,109,662,944,359.34/14,483,443.20
6. Step 6: Final answer
   x = 10,916,579.76