Finding the Fourth Proportional to 168,079.50, 231,949.71 and 101,011.50

Step by Step Solution

1. Step 1: Write the proportion equation
   168,079.50 : 231,949.71 = 101,011.50 : x
2. Step 2: Convert to fraction form
   168,079.50/231,949.71 = 101,011.50/x
3. Step 3: Cross multiply
   168,079.50x = 231,949.71 × 101,011.50
4. Step 4: Simplify right side
   168,079.50x = 23,429,588,131.67
5. Step 5: Solve for x
   x = 23,429,588,131.67/168,079.50
6. Step 6: Final answer
   x = 139,395.87