Finding the Fourth Proportional to 105,711.93, 145,841.76 and 67,472.82

Step by Step Solution

1. Step 1: Write the proportion equation
   105,711.93 : 145,841.76 = 67,472.82 : x
2. Step 2: Convert to fraction form
   105,711.93/145,841.76 = 67,472.82/x
3. Step 3: Cross multiply
   105,711.93x = 145,841.76 × 67,472.82
4. Step 4: Simplify right side
   105,711.93x = 9,840,354,820.96
5. Step 5: Solve for x
   x = 9,840,354,820.96/105,711.93
6. Step 6: Final answer
   x = 93,086.51