Finding the Fourth Proportional to 79,166.72, 118,739.04 and 19,998.72

Step by Step Solution

1. Step 1: Write the proportion equation
   79,166.72 : 118,739.04 = 19,998.72 : x
2. Step 2: Convert to fraction form
   79,166.72/118,739.04 = 19,998.72/x
3. Step 3: Cross multiply
   79,166.72x = 118,739.04 × 19,998.72
4. Step 4: Simplify right side
   79,166.72x = 2,374,628,814.03
5. Step 5: Solve for x
   x = 2,374,628,814.03/79,166.72
6. Step 6: Final answer
   x = 29,995.29