Finding the Fourth Proportional to 305,499.88, 421,570.78 and 184,569.72

Step by Step Solution

1. Step 1: Write the proportion equation
   305,499.88 : 421,570.78 = 184,569.72 : x
2. Step 2: Convert to fraction form
   305,499.88/421,570.78 = 184,569.72/x
3. Step 3: Cross multiply
   305,499.88x = 421,570.78 × 184,569.72
4. Step 4: Simplify right side
   305,499.88x = 77,809,200,824.78
5. Step 5: Solve for x
   x = 77,809,200,824.78/305,499.88
6. Step 6: Final answer
   x = 254,694.70