Finding the Fourth Proportional to 116,897.02, 161,317.91 and 65,909.85

Step by Step Solution

1. Step 1: Write the proportion equation
   116,897.02 : 161,317.91 = 65,909.85 : x
2. Step 2: Convert to fraction form
   116,897.02/161,317.91 = 65,909.85/x
3. Step 3: Cross multiply
   116,897.02x = 161,317.91 × 65,909.85
4. Step 4: Simplify right side
   116,897.02x = 10,632,438,443.82
5. Step 5: Solve for x
   x = 10,632,438,443.82/116,897.02
6. Step 6: Final answer
   x = 90,955.60