Finding the Fourth Proportional to 116,889.76, 161,299.77 and 65,904.31

Step by Step Solution

1. Step 1: Write the proportion equation
   116,889.76 : 161,299.77 = 65,904.31 : x
2. Step 2: Convert to fraction form
   116,889.76/161,299.77 = 65,904.31/x
3. Step 3: Cross multiply
   116,889.76x = 161,299.77 × 65,904.31
4. Step 4: Simplify right side
   116,889.76x = 10,630,350,045.01
5. Step 5: Solve for x
   x = 10,630,350,045.01/116,889.76
6. Step 6: Final answer
   x = 90,943.38