Finding the Fourth Proportional to 73,100.64, 100,879.72 and 42,886.50

Step by Step Solution

1. Step 1: Write the proportion equation
   73,100.64 : 100,879.72 = 42,886.50 : x
2. Step 2: Convert to fraction form
   73,100.64/100,879.72 = 42,886.50/x
3. Step 3: Cross multiply
   73,100.64x = 100,879.72 × 42,886.50
4. Step 4: Simplify right side
   73,100.64x = 4,326,378,111.78
5. Step 5: Solve for x
   x = 4,326,378,111.78/73,100.64
6. Step 6: Final answer
   x = 59,183.86