Finding the Fourth Proportional to 405,667.56, 559,810.68 and 224,374.98

Step by Step Solution

1. Step 1: Write the proportion equation
   405,667.56 : 559,810.68 = 224,374.98 : x
2. Step 2: Convert to fraction form
   405,667.56/559,810.68 = 224,374.98/x
3. Step 3: Cross multiply
   405,667.56x = 559,810.68 × 224,374.98
4. Step 4: Simplify right side
   405,667.56x = 125,607,510,128.79
5. Step 5: Solve for x
   x = 125,607,510,128.79/405,667.56
6. Step 6: Final answer
   x = 309,631.64