Finding the Fourth Proportional to 103,327.55, 142,555.33 and 67,538.21

Step by Step Solution

1. Step 1: Write the proportion equation
   103,327.55 : 142,555.33 = 67,538.21 : x
2. Step 2: Convert to fraction form
   103,327.55/142,555.33 = 67,538.21/x
3. Step 3: Cross multiply
   103,327.55x = 142,555.33 × 67,538.21
4. Step 4: Simplify right side
   103,327.55x = 9,627,930,932.54
5. Step 5: Solve for x
   x = 9,627,930,932.54/103,327.55
6. Step 6: Final answer
   x = 93,178.74