Finding the Fourth Proportional to 540,404.32, 745,796.56 and 298,681.64

Step by Step Solution

1. Step 1: Write the proportion equation
   540,404.32 : 745,796.56 = 298,681.64 : x
2. Step 2: Convert to fraction form
   540,404.32/745,796.56 = 298,681.64/x
3. Step 3: Cross multiply
   540,404.32x = 745,796.56 × 298,681.64
4. Step 4: Simplify right side
   540,404.32x = 222,755,739,647.16
5. Step 5: Solve for x
   x = 222,755,739,647.16/540,404.32
6. Step 6: Final answer
   x = 412,202.00