Finding the Fourth Proportional to 105,671.57, 158,418.51 and 49,482.07

Step by Step Solution

1. Step 1: Write the proportion equation
   105,671.57 : 158,418.51 = 49,482.07 : x
2. Step 2: Convert to fraction form
   105,671.57/158,418.51 = 49,482.07/x
3. Step 3: Cross multiply
   105,671.57x = 158,418.51 × 49,482.07
4. Step 4: Simplify right side
   105,671.57x = 7,838,875,801.12
5. Step 5: Solve for x
   x = 7,838,875,801.12/105,671.57
6. Step 6: Final answer
   x = 74,181.50