Finding the Fourth Proportional to 190,118.07, 285,100.56 and 71,724.96

Step by Step Solution

1. Step 1: Write the proportion equation
   190,118.07 : 285,100.56 = 71,724.96 : x
2. Step 2: Convert to fraction form
   190,118.07/285,100.56 = 71,724.96/x
3. Step 3: Cross multiply
   190,118.07x = 285,100.56 × 71,724.96
4. Step 4: Simplify right side
   190,118.07x = 20,448,826,261.98
5. Step 5: Solve for x
   x = 20,448,826,261.98/190,118.07
6. Step 6: Final answer
   x = 107,558.56