Finding the Fourth Proportional to 405,600.55, 559,746.25 and 224,312.52

Step by Step Solution

1. Step 1: Write the proportion equation
   405,600.55 : 559,746.25 = 224,312.52 : x
2. Step 2: Convert to fraction form
   405,600.55/559,746.25 = 224,312.52/x
3. Step 3: Cross multiply
   405,600.55x = 559,746.25 × 224,312.52
4. Step 4: Simplify right side
   405,600.55x = 125,558,093,436.32
5. Step 5: Solve for x
   x = 125,558,093,436.32/405,600.55
6. Step 6: Final answer
   x = 309,560.96