Finding the Fourth Proportional to 10,139,172.40, 13,992,618.20 and 5,789,655.84

Step by Step Solution

1. Step 1: Write the proportion equation
   10,139,172.40 : 13,992,618.20 = 5,789,655.84 : x
2. Step 2: Convert to fraction form
   10,139,172.40/13,992,618.20 = 5,789,655.84/x
3. Step 3: Cross multiply
   10,139,172.40x = 13,992,618.20 × 5,789,655.84
4. Step 4: Simplify right side
   10,139,172.40x = 81,012,443,678,520.28
5. Step 5: Solve for x
   x = 81,012,443,678,520.28/10,139,172.40
6. Step 6: Final answer
   x = 7,990,044.99