Finding the Fourth Proportional to 12,378,165.08, 18,566,371.11 and 3,280,061.23

Step by Step Solution

1. Step 1: Write the proportion equation
   12,378,165.08 : 18,566,371.11 = 3,280,061.23 : x
2. Step 2: Convert to fraction form
   12,378,165.08/18,566,371.11 = 3,280,061.23/x
3. Step 3: Cross multiply
   12,378,165.08x = 18,566,371.11 × 3,280,061.23
4. Step 4: Simplify right side
   12,378,165.08x = 60,898,834,111,572.86
5. Step 5: Solve for x
   x = 60,898,834,111,572.86/12,378,165.08
6. Step 6: Final answer
   x = 4,919,859.59