Finding the Fourth Proportional to 12,663,549.48, 18,995,061.24 and 3,078,978.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,663,549.48 : 18,995,061.24 = 3,078,978.24 : x
2. Step 2: Convert to fraction form
   12,663,549.48/18,995,061.24 = 3,078,978.24/x
3. Step 3: Cross multiply
   12,663,549.48x = 18,995,061.24 × 3,078,978.24
4. Step 4: Simplify right side
   12,663,549.48x = 58,485,380,225,427.41
5. Step 5: Solve for x
   x = 58,485,380,225,427.41/12,663,549.48
6. Step 6: Final answer
   x = 4,618,403.42