Finding the Fourth Proportional to 105,499.08, 158,231.52 and 38,970.54

Step by Step Solution

1. Step 1: Write the proportion equation
   105,499.08 : 158,231.52 = 38,970.54 : x
2. Step 2: Convert to fraction form
   105,499.08/158,231.52 = 38,970.54/x
3. Step 3: Cross multiply
   105,499.08x = 158,231.52 × 38,970.54
4. Step 4: Simplify right side
   105,499.08x = 6,166,367,779.42
5. Step 5: Solve for x
   x = 6,166,367,779.42/105,499.08
6. Step 6: Final answer
   x = 58,449.49