Finding the Fourth Proportional to 9,162,985.89, 12,644,945.99 and 5,088,604.89

Step by Step Solution

1. Step 1: Write the proportion equation
   9,162,985.89 : 12,644,945.99 = 5,088,604.89 : x
2. Step 2: Convert to fraction form
   9,162,985.89/12,644,945.99 = 5,088,604.89/x
3. Step 3: Cross multiply
   9,162,985.89x = 12,644,945.99 × 5,088,604.89
4. Step 4: Simplify right side
   9,162,985.89x = 64,345,133,998,499.89
5. Step 5: Solve for x
   x = 64,345,133,998,499.89/9,162,985.89
6. Step 6: Final answer
   x = 7,022,288.89