Finding the Fourth Proportional to 115,510.24, 159,402.40 and 64,523.89

Step by Step Solution

1. Step 1: Write the proportion equation
   115,510.24 : 159,402.40 = 64,523.89 : x
2. Step 2: Convert to fraction form
   115,510.24/159,402.40 = 64,523.89/x
3. Step 3: Cross multiply
   115,510.24x = 159,402.40 × 64,523.89
4. Step 4: Simplify right side
   115,510.24x = 10,285,262,923.34
5. Step 5: Solve for x
   x = 10,285,262,923.34/115,510.24
6. Step 6: Final answer
   x = 89,042.00