Finding the Fourth Proportional to 12,128,499.15, 18,188,320.05 and 4,041,738.60

Step by Step Solution

1. Step 1: Write the proportion equation
   12,128,499.15 : 18,188,320.05 = 4,041,738.60 : x
2. Step 2: Convert to fraction form
   12,128,499.15/18,188,320.05 = 4,041,738.60/x
3. Step 3: Cross multiply
   12,128,499.15x = 18,188,320.05 × 4,041,738.60
4. Step 4: Simplify right side
   12,128,499.15x = 73,512,435,215,238.94
5. Step 5: Solve for x
   x = 73,512,435,215,238.94/12,128,499.15
6. Step 6: Final answer
   x = 6,061,132.07