Finding the Fourth Proportional to 501,900.72, 692,627.98 and 272,459.78

Step by Step Solution

1. Step 1: Write the proportion equation
   501,900.72 : 692,627.98 = 272,459.78 : x
2. Step 2: Convert to fraction form
   501,900.72/692,627.98 = 272,459.78/x
3. Step 3: Cross multiply
   501,900.72x = 692,627.98 × 272,459.78
4. Step 4: Simplify right side
   501,900.72x = 188,713,267,052.64
5. Step 5: Solve for x
   x = 188,713,267,052.64/501,900.72
6. Step 6: Final answer
   x = 375,997.20