Finding the Fourth Proportional to 10,166,105.60, 15,249,061.20 and 2,489,784.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,166,105.60 : 15,249,061.20 = 2,489,784.20 : x
2. Step 2: Convert to fraction form
   10,166,105.60/15,249,061.20 = 2,489,784.20/x
3. Step 3: Cross multiply
   10,166,105.60x = 15,249,061.20 × 2,489,784.20
4. Step 4: Simplify right side
   10,166,105.60x = 37,966,871,640,593.04
5. Step 5: Solve for x
   x = 37,966,871,640,593.04/10,166,105.60
6. Step 6: Final answer
   x = 3,734,652.49