Finding the Fourth Proportional to 124,019.21, 171,141.55 and 73,034.09

Step by Step Solution

1. Step 1: Write the proportion equation
   124,019.21 : 171,141.55 = 73,034.09 : x
2. Step 2: Convert to fraction form
   124,019.21/171,141.55 = 73,034.09/x
3. Step 3: Cross multiply
   124,019.21x = 171,141.55 × 73,034.09
4. Step 4: Simplify right side
   124,019.21x = 12,499,167,000.27
5. Step 5: Solve for x
   x = 12,499,167,000.27/124,019.21
6. Step 6: Final answer
   x = 100,784.12