Finding the Fourth Proportional to 115,604.74, 159,526.82 and 65,300.50

Step by Step Solution

1. Step 1: Write the proportion equation
   115,604.74 : 159,526.82 = 65,300.50 : x
2. Step 2: Convert to fraction form
   115,604.74/159,526.82 = 65,300.50/x
3. Step 3: Cross multiply
   115,604.74x = 159,526.82 × 65,300.50
4. Step 4: Simplify right side
   115,604.74x = 10,417,181,109.41
5. Step 5: Solve for x
   x = 10,417,181,109.41/115,604.74
6. Step 6: Final answer
   x = 90,110.33