Finding the Fourth Proportional to 215,991.39, 323,985.71 and 73,768.05

Step by Step Solution

1. Step 1: Write the proportion equation
   215,991.39 : 323,985.71 = 73,768.05 : x
2. Step 2: Convert to fraction form
   215,991.39/323,985.71 = 73,768.05/x
3. Step 3: Cross multiply
   215,991.39x = 323,985.71 × 73,768.05
4. Step 4: Simplify right side
   215,991.39x = 23,899,793,685.73
5. Step 5: Solve for x
   x = 23,899,793,685.73/215,991.39
6. Step 6: Final answer
   x = 110,651.60