Finding the Fourth Proportional to 9,861,390.09, 13,608,456.98 and 5,510,512.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,861,390.09 : 13,608,456.98 = 5,510,512.15 : x
2. Step 2: Convert to fraction form
   9,861,390.09/13,608,456.98 = 5,510,512.15/x
3. Step 3: Cross multiply
   9,861,390.09x = 13,608,456.98 × 5,510,512.15
4. Step 4: Simplify right side
   9,861,390.09x = 74,989,567,469,468.59
5. Step 5: Solve for x
   x = 74,989,567,469,468.59/9,861,390.09
6. Step 6: Final answer
   x = 7,604,360.72