Finding the Fourth Proportional to 20,039,468.75, 27,654,519.99 and 10,872,111.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,039,468.75 : 27,654,519.99 = 10,872,111.50 : x
2. Step 2: Convert to fraction form
   20,039,468.75/27,654,519.99 = 10,872,111.50/x
3. Step 3: Cross multiply
   20,039,468.75x = 27,654,519.99 × 10,872,111.50
4. Step 4: Simplify right side
   20,039,468.75x = 300,663,024,810,258.88
5. Step 5: Solve for x
   x = 300,663,024,810,258.88/20,039,468.75
6. Step 6: Final answer
   x = 15,003,542.69