Finding the Fourth Proportional to 261,560.02, 360,978.51 and 154,164.82

Step by Step Solution

1. Step 1: Write the proportion equation
   261,560.02 : 360,978.51 = 154,164.82 : x
2. Step 2: Convert to fraction form
   261,560.02/360,978.51 = 154,164.82/x
3. Step 3: Cross multiply
   261,560.02x = 360,978.51 × 154,164.82
4. Step 4: Simplify right side
   261,560.02x = 55,650,187,018.02
5. Step 5: Solve for x
   x = 55,650,187,018.02/261,560.02
6. Step 6: Final answer
   x = 212,762.59