Finding the Fourth Proportional to 11,472,729.30, 17,209,871.55 and 3,900,266.10

Step by Step Solution

1. Step 1: Write the proportion equation
   11,472,729.30 : 17,209,871.55 = 3,900,266.10 : x
2. Step 2: Convert to fraction form
   11,472,729.30/17,209,871.55 = 3,900,266.10/x
3. Step 3: Cross multiply
   11,472,729.30x = 17,209,871.55 × 3,900,266.10
4. Step 4: Simplify right side
   11,472,729.30x = 67,123,078,591,819.46
5. Step 5: Solve for x
   x = 67,123,078,591,819.46/11,472,729.30
6. Step 6: Final answer
   x = 5,850,663.50