Finding the Fourth Proportional to 555,940.31, 767,200.38 and 301,291.50

Step by Step Solution

1. Step 1: Write the proportion equation
   555,940.31 : 767,200.38 = 301,291.50 : x
2. Step 2: Convert to fraction form
   555,940.31/767,200.38 = 301,291.50/x
3. Step 3: Cross multiply
   555,940.31x = 767,200.38 × 301,291.50
4. Step 4: Simplify right side
   555,940.31x = 231,150,953,290.77
5. Step 5: Solve for x
   x = 231,150,953,290.77/555,940.31
6. Step 6: Final answer
   x = 415,783.76