Finding the Fourth Proportional to 17,108,865.96, 23,602,320.72 and 15,150,739.56

Step by Step Solution

1. Step 1: Write the proportion equation
   17,108,865.96 : 23,602,320.72 = 15,150,739.56 : x
2. Step 2: Convert to fraction form
   17,108,865.96/23,602,320.72 = 15,150,739.56/x
3. Step 3: Cross multiply
   17,108,865.96x = 23,602,320.72 × 15,150,739.56
4. Step 4: Simplify right side
   17,108,865.96x = 357,592,614,240,311.69
5. Step 5: Solve for x
   x = 357,592,614,240,311.69/17,108,865.96
6. Step 6: Final answer
   x = 20,901,012.09