Finding the Fourth Proportional to 64,972.86, 89,662.53 and 35,164.86

Step by Step Solution

1. Step 1: Write the proportion equation
   64,972.86 : 89,662.53 = 35,164.86 : x
2. Step 2: Convert to fraction form
   64,972.86/89,662.53 = 35,164.86/x
3. Step 3: Cross multiply
   64,972.86x = 89,662.53 × 35,164.86
4. Step 4: Simplify right side
   64,972.86x = 3,152,970,314.70
5. Step 5: Solve for x
   x = 3,152,970,314.70/64,972.86
6. Step 6: Final answer
   x = 48,527.50