Finding the Fourth Proportional to 404,191.86, 606,120.98 and 137,973.84

Step by Step Solution

1. Step 1: Write the proportion equation
   404,191.86 : 606,120.98 = 137,973.84 : x
2. Step 2: Convert to fraction form
   404,191.86/606,120.98 = 137,973.84/x
3. Step 3: Cross multiply
   404,191.86x = 606,120.98 × 137,973.84
4. Step 4: Simplify right side
   404,191.86x = 83,628,839,115.16
5. Step 5: Solve for x
   x = 83,628,839,115.16/404,191.86
6. Step 6: Final answer
   x = 206,903.82