Finding the Fourth Proportional to 380,171.59, 569,627.68 and 267,300.34

Step by Step Solution

1. Step 1: Write the proportion equation
   380,171.59 : 569,627.68 = 267,300.34 : x
2. Step 2: Convert to fraction form
   380,171.59/569,627.68 = 267,300.34/x
3. Step 3: Cross multiply
   380,171.59x = 569,627.68 × 267,300.34
4. Step 4: Simplify right side
   380,171.59x = 152,261,672,537.41
5. Step 5: Solve for x
   x = 152,261,672,537.41/380,171.59
6. Step 6: Final answer
   x = 400,507.76