Finding the Fourth Proportional to 12,730,328.56, 19,094,974.98 and 3,145,465.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,730,328.56 : 19,094,974.98 = 3,145,465.72 : x
2. Step 2: Convert to fraction form
   12,730,328.56/19,094,974.98 = 3,145,465.72/x
3. Step 3: Cross multiply
   12,730,328.56x = 19,094,974.98 × 3,145,465.72
4. Step 4: Simplify right side
   12,730,328.56x = 60,062,589,223,847.69
5. Step 5: Solve for x
   x = 60,062,589,223,847.69/12,730,328.56
6. Step 6: Final answer
   x = 4,718,070.62