Finding the Fourth Proportional to 105,386.46, 145,366.82 and 73,543.74

Step by Step Solution

1. Step 1: Write the proportion equation
   105,386.46 : 145,366.82 = 73,543.74 : x
2. Step 2: Convert to fraction form
   105,386.46/145,366.82 = 73,543.74/x
3. Step 3: Cross multiply
   105,386.46x = 145,366.82 × 73,543.74
4. Step 4: Simplify right side
   105,386.46x = 10,690,819,614.71
5. Step 5: Solve for x
   x = 10,690,819,614.71/105,386.46
6. Step 6: Final answer
   x = 101,443.96