Finding the Fourth Proportional to 105,431.41, 158,110.66 and 34,335.69

Step by Step Solution

1. Step 1: Write the proportion equation
   105,431.41 : 158,110.66 = 34,335.69 : x
2. Step 2: Convert to fraction form
   105,431.41/158,110.66 = 34,335.69/x
3. Step 3: Cross multiply
   105,431.41x = 158,110.66 × 34,335.69
4. Step 4: Simplify right side
   105,431.41x = 5,428,838,607.46
5. Step 5: Solve for x
   x = 5,428,838,607.46/105,431.41
6. Step 6: Final answer
   x = 51,491.66