Finding the Fourth Proportional to 95,142.71, 131,350.74 and 64,971.83

Step by Step Solution

1. Step 1: Write the proportion equation
   95,142.71 : 131,350.74 = 64,971.83 : x
2. Step 2: Convert to fraction form
   95,142.71/131,350.74 = 64,971.83/x
3. Step 3: Cross multiply
   95,142.71x = 131,350.74 × 64,971.83
4. Step 4: Simplify right side
   95,142.71x = 8,534,097,949.65
5. Step 5: Solve for x
   x = 8,534,097,949.65/95,142.71
6. Step 6: Final answer
   x = 89,697.86