Finding the Fourth Proportional to 12,018,111.69, 18,027,167.55 and 2,920,162.53

Step by Step Solution

1. Step 1: Write the proportion equation
   12,018,111.69 : 18,027,167.55 = 2,920,162.53 : x
2. Step 2: Convert to fraction form
   12,018,111.69/18,027,167.55 = 2,920,162.53/x
3. Step 3: Cross multiply
   12,018,111.69x = 18,027,167.55 × 2,920,162.53
4. Step 4: Simplify right side
   12,018,111.69x = 52,642,259,201,541.90
5. Step 5: Solve for x
   x = 52,642,259,201,541.90/12,018,111.69
6. Step 6: Final answer
   x = 4,380,243.80