Finding the Fourth Proportional to 10,866,131.46, 16,289,063.28 and 3,672,660.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,866,131.46 : 16,289,063.28 = 3,672,660.78 : x
2. Step 2: Convert to fraction form
   10,866,131.46/16,289,063.28 = 3,672,660.78/x
3. Step 3: Cross multiply
   10,866,131.46x = 16,289,063.28 × 3,672,660.78
4. Step 4: Simplify right side
   10,866,131.46x = 59,824,203,851,394.16
5. Step 5: Solve for x
   x = 59,824,203,851,394.16/10,866,131.46
6. Step 6: Final answer
   x = 5,505,565.99