Finding the Fourth Proportional to 105,890.31, 158,788.83 and 49,746.38

Step by Step Solution

1. Step 1: Write the proportion equation
   105,890.31 : 158,788.83 = 49,746.38 : x
2. Step 2: Convert to fraction form
   105,890.31/158,788.83 = 49,746.38/x
3. Step 3: Cross multiply
   105,890.31x = 158,788.83 × 49,746.38
4. Step 4: Simplify right side
   105,890.31x = 7,899,168,682.99
5. Step 5: Solve for x
   x = 7,899,168,682.99/105,890.31
6. Step 6: Final answer
   x = 74,597.65