Finding the Fourth Proportional to 123,991.26, 171,100.71 and 67,402.14

Step by Step Solution

1. Step 1: Write the proportion equation
   123,991.26 : 171,100.71 = 67,402.14 : x
2. Step 2: Convert to fraction form
   123,991.26/171,100.71 = 67,402.14/x
3. Step 3: Cross multiply
   123,991.26x = 171,100.71 × 67,402.14
4. Step 4: Simplify right side
   123,991.26x = 11,532,554,009.52
5. Step 5: Solve for x
   x = 11,532,554,009.52/123,991.26
6. Step 6: Final answer
   x = 93,011.02