Finding the Fourth Proportional to 404,607.61, 558,582.23 and 243,502.25

Step by Step Solution

1. Step 1: Write the proportion equation
   404,607.61 : 558,582.23 = 243,502.25 : x
2. Step 2: Convert to fraction form
   404,607.61/558,582.23 = 243,502.25/x
3. Step 3: Cross multiply
   404,607.61x = 558,582.23 × 243,502.25
4. Step 4: Simplify right side
   404,607.61x = 136,016,028,597.51
5. Step 5: Solve for x
   x = 136,016,028,597.51/404,607.61
6. Step 6: Final answer
   x = 336,167.75