Finding the Fourth Proportional to 39,930,150.72, 55,103,607.36 and 21,595,436.16

Step by Step Solution

1. Step 1: Write the proportion equation
   39,930,150.72 : 55,103,607.36 = 21,595,436.16 : x
2. Step 2: Convert to fraction form
   39,930,150.72/55,103,607.36 = 21,595,436.16/x
3. Step 3: Cross multiply
   39,930,150.72x = 55,103,607.36 × 21,595,436.16
4. Step 4: Simplify right side
   39,930,150.72x = 1,189,986,434,928,586.25
5. Step 5: Solve for x
   x = 1,189,986,434,928,586.25/39,930,150.72
6. Step 6: Final answer
   x = 29,801,701.56