Finding the Fourth Proportional to 10,851,688.15, 16,280,124.23 and 3,278,728.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,851,688.15 : 16,280,124.23 = 3,278,728.15 : x
2. Step 2: Convert to fraction form
   10,851,688.15/16,280,124.23 = 3,278,728.15/x
3. Step 3: Cross multiply
   10,851,688.15x = 16,280,124.23 × 3,278,728.15
4. Step 4: Simplify right side
   10,851,688.15x = 53,378,101,582,004.43
5. Step 5: Solve for x
   x = 53,378,101,582,004.43/10,851,688.15
6. Step 6: Final answer
   x = 4,918,875.37