Finding the Fourth Proportional to 249,870.27, 374,805.39 and 72,377.31

Step by Step Solution

1. Step 1: Write the proportion equation
   249,870.27 : 374,805.39 = 72,377.31 : x
2. Step 2: Convert to fraction form
   249,870.27/374,805.39 = 72,377.31/x
3. Step 3: Cross multiply
   249,870.27x = 374,805.39 × 72,377.31
4. Step 4: Simplify right side
   249,870.27x = 27,127,405,901.70
5. Step 5: Solve for x
   x = 27,127,405,901.70/249,870.27
6. Step 6: Final answer
   x = 108,565.96