Finding the Fourth Proportional to 89,150.62, 133,683.59 and 51,722.16

Step by Step Solution

1. Step 1: Write the proportion equation
   89,150.62 : 133,683.59 = 51,722.16 : x
2. Step 2: Convert to fraction form
   89,150.62/133,683.59 = 51,722.16/x
3. Step 3: Cross multiply
   89,150.62x = 133,683.59 × 51,722.16
4. Step 4: Simplify right side
   89,150.62x = 6,914,404,288.51
5. Step 5: Solve for x
   x = 6,914,404,288.51/89,150.62
6. Step 6: Final answer
   x = 77,558.68