Finding the Fourth Proportional to 438,125, 604,612.53 and 236,921

Step by Step Solution

1. Step 1: Write the proportion equation
   438,125 : 604,612.53 = 236,921 : x
2. Step 2: Convert to fraction form
   438,125/604,612.53 = 236,921/x
3. Step 3: Cross multiply
   438,125x = 604,612.53 × 236,921
4. Step 4: Simplify right side
   438,125x = 143,245,405,220.13
5. Step 5: Solve for x
   x = 143,245,405,220.13/438,125
6. Step 6: Final answer
   x = 326,951.00