Finding the Fourth Proportional to 105,530.18, 158,303.52 and 30,651.57

Step by Step Solution

1. Step 1: Write the proportion equation
   105,530.18 : 158,303.52 = 30,651.57 : x
2. Step 2: Convert to fraction form
   105,530.18/158,303.52 = 30,651.57/x
3. Step 3: Cross multiply
   105,530.18x = 158,303.52 × 30,651.57
4. Step 4: Simplify right side
   105,530.18x = 4,852,251,424.53
5. Step 5: Solve for x
   x = 4,852,251,424.53/105,530.18
6. Step 6: Final answer
   x = 45,979.75