Finding the Fourth Proportional to 112,443.98, 168,690.27 and 42,323.09

Step by Step Solution

1. Step 1: Write the proportion equation
   112,443.98 : 168,690.27 = 42,323.09 : x
2. Step 2: Convert to fraction form
   112,443.98/168,690.27 = 42,323.09/x
3. Step 3: Cross multiply
   112,443.98x = 168,690.27 × 42,323.09
4. Step 4: Simplify right side
   112,443.98x = 7,139,493,479.33
5. Step 5: Solve for x
   x = 7,139,493,479.33/112,443.98
6. Step 6: Final answer
   x = 63,493.78