Finding the Fourth Proportional to 107,500.19, 161,062.88 and 65,291.09

Step by Step Solution

1. Step 1: Write the proportion equation
   107,500.19 : 161,062.88 = 65,291.09 : x
2. Step 2: Convert to fraction form
   107,500.19/161,062.88 = 65,291.09/x
3. Step 3: Cross multiply
   107,500.19x = 161,062.88 × 65,291.09
4. Step 4: Simplify right side
   107,500.19x = 10,515,969,861.97
5. Step 5: Solve for x
   x = 10,515,969,861.97/107,500.19
6. Step 6: Final answer
   x = 97,822.81