Finding the Fourth Proportional to 100,967.10, 139,369.59 and 69,241.02

Step by Step Solution

1. Step 1: Write the proportion equation
   100,967.10 : 139,369.59 = 69,241.02 : x
2. Step 2: Convert to fraction form
   100,967.10/139,369.59 = 69,241.02/x
3. Step 3: Cross multiply
   100,967.10x = 139,369.59 × 69,241.02
4. Step 4: Simplify right side
   100,967.10x = 9,650,092,568.58
5. Step 5: Solve for x
   x = 9,650,092,568.58/100,967.10
6. Step 6: Final answer
   x = 95,576.60