Finding the Fourth Proportional to 10,887,399.12, 16,328,663.01 and 3,209,405.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,887,399.12 : 16,328,663.01 = 3,209,405.88 : x
2. Step 2: Convert to fraction form
   10,887,399.12/16,328,663.01 = 3,209,405.88/x
3. Step 3: Cross multiply
   10,887,399.12x = 16,328,663.01 × 3,209,405.88
4. Step 4: Simplify right side
   10,887,399.12x = 52,405,307,076,832.50
5. Step 5: Solve for x
   x = 52,405,307,076,832.50/10,887,399.12
6. Step 6: Final answer
   x = 4,813,390.83