Finding the Fourth Proportional to 438,777.98, 658,191.59 and 123,210.28

Step by Step Solution

1. Step 1: Write the proportion equation
   438,777.98 : 658,191.59 = 123,210.28 : x
2. Step 2: Convert to fraction form
   438,777.98/658,191.59 = 123,210.28/x
3. Step 3: Cross multiply
   438,777.98x = 658,191.59 × 123,210.28
4. Step 4: Simplify right side
   438,777.98x = 81,095,970,766.27
5. Step 5: Solve for x
   x = 81,095,970,766.27/438,777.98
6. Step 6: Final answer
   x = 184,822.34