Finding the Fourth Proportional to 8,199,978.30, 12,292,969.05 and 5,796,261.18

Step by Step Solution

1. Step 1: Write the proportion equation
   8,199,978.30 : 12,292,969.05 = 5,796,261.18 : x
2. Step 2: Convert to fraction form
   8,199,978.30/12,292,969.05 = 5,796,261.18/x
3. Step 3: Cross multiply
   8,199,978.30x = 12,292,969.05 × 5,796,261.18
4. Step 4: Simplify right side
   8,199,978.30x = 71,253,259,291,456.48
5. Step 5: Solve for x
   x = 71,253,259,291,456.48/8,199,978.30
6. Step 6: Final answer
   x = 8,689,444.86