Finding the Fourth Proportional to 115,925, 159,976.50 and 65,624

Step by Step Solution

1. Step 1: Write the proportion equation
   115,925 : 159,976.50 = 65,624 : x
2. Step 2: Convert to fraction form
   115,925/159,976.50 = 65,624/x
3. Step 3: Cross multiply
   115,925x = 159,976.50 × 65,624
4. Step 4: Simplify right side
   115,925x = 10,498,297,836
5. Step 5: Solve for x
   x = 10,498,297,836/115,925
6. Step 6: Final answer
   x = 90,561.12