Finding the Fourth Proportional to 116,697.25, 161,032.62 and 65,693.69

Step by Step Solution

1. Step 1: Write the proportion equation
   116,697.25 : 161,032.62 = 65,693.69 : x
2. Step 2: Convert to fraction form
   116,697.25/161,032.62 = 65,693.69/x
3. Step 3: Cross multiply
   116,697.25x = 161,032.62 × 65,693.69
4. Step 4: Simplify right side
   116,697.25x = 10,578,827,018.17
5. Step 5: Solve for x
   x = 10,578,827,018.17/116,697.25
6. Step 6: Final answer
   x = 90,651.90