Finding the Fourth Proportional to 254,978.69, 351,889.72 and 153,008.60

Step by Step Solution

1. Step 1: Write the proportion equation
   254,978.69 : 351,889.72 = 153,008.60 : x
2. Step 2: Convert to fraction form
   254,978.69/351,889.72 = 153,008.60/x
3. Step 3: Cross multiply
   254,978.69x = 351,889.72 × 153,008.60
4. Step 4: Simplify right side
   254,978.69x = 53,842,151,269.62
5. Step 5: Solve for x
   x = 53,842,151,269.62/254,978.69
6. Step 6: Final answer
   x = 211,163.34