Finding the Fourth Proportional to 16,353,598.72, 22,404,510.40 and 15,740,665.28

Step by Step Solution

1. Step 1: Write the proportion equation
   16,353,598.72 : 22,404,510.40 = 15,740,665.28 : x
2. Step 2: Convert to fraction form
   16,353,598.72/22,404,510.40 = 15,740,665.28/x
3. Step 3: Cross multiply
   16,353,598.72x = 22,404,510.40 × 15,740,665.28
4. Step 4: Simplify right side
   16,353,598.72x = 352,661,898,968,678.88
5. Step 5: Solve for x
   x = 352,661,898,968,678.88/16,353,598.72
6. Step 6: Final answer
   x = 21,564,788.58