Finding the Fourth Proportional to 171,874.28, 257,641.86 and 72,062.84

Step by Step Solution

1. Step 1: Write the proportion equation
   171,874.28 : 257,641.86 = 72,062.84 : x
2. Step 2: Convert to fraction form
   171,874.28/257,641.86 = 72,062.84/x
3. Step 3: Cross multiply
   171,874.28x = 257,641.86 × 72,062.84
4. Step 4: Simplify right side
   171,874.28x = 18,566,404,134.48
5. Step 5: Solve for x
   x = 18,566,404,134.48/171,874.28
6. Step 6: Final answer
   x = 108,023.17