Finding the Fourth Proportional to 105,407.09, 158,032.71 and 54,733.37

Step by Step Solution

1. Step 1: Write the proportion equation
   105,407.09 : 158,032.71 = 54,733.37 : x
2. Step 2: Convert to fraction form
   105,407.09/158,032.71 = 54,733.37/x
3. Step 3: Cross multiply
   105,407.09x = 158,032.71 × 54,733.37
4. Step 4: Simplify right side
   105,407.09x = 8,649,662,788.53
5. Step 5: Solve for x
   x = 8,649,662,788.53/105,407.09
6. Step 6: Final answer
   x = 82,059.59