Finding the Fourth Proportional to 16,715,782.89, 23,072,678.69 and 10,915,465.23

Step by Step Solution

1. Step 1: Write the proportion equation
   16,715,782.89 : 23,072,678.69 = 10,915,465.23 : x
2. Step 2: Convert to fraction form
   16,715,782.89/23,072,678.69 = 10,915,465.23/x
3. Step 3: Cross multiply
   16,715,782.89x = 23,072,678.69 × 10,915,465.23
4. Step 4: Simplify right side
   16,715,782.89x = 251,849,021,949,079.62
5. Step 5: Solve for x
   x = 251,849,021,949,079.62/16,715,782.89
6. Step 6: Final answer
   x = 15,066,540.62