Finding the Fourth Proportional to 549,090.50, 757,760.72 and 307,371.62

Step by Step Solution

1. Step 1: Write the proportion equation
   549,090.50 : 757,760.72 = 307,371.62 : x
2. Step 2: Convert to fraction form
   549,090.50/757,760.72 = 307,371.62/x
3. Step 3: Cross multiply
   549,090.50x = 757,760.72 × 307,371.62
4. Step 4: Simplify right side
   549,090.50x = 232,914,140,436.31
5. Step 5: Solve for x
   x = 232,914,140,436.31/549,090.50
6. Step 6: Final answer
   x = 424,181.70