Finding the Fourth Proportional to 607,947.12, 911,974.14 and 158,664.42

Step by Step Solution

1. Step 1: Write the proportion equation
   607,947.12 : 911,974.14 = 158,664.42 : x
2. Step 2: Convert to fraction form
   607,947.12/911,974.14 = 158,664.42/x
3. Step 3: Cross multiply
   607,947.12x = 911,974.14 × 158,664.42
4. Step 4: Simplify right side
   607,947.12x = 144,697,847,978.10
5. Step 5: Solve for x
   x = 144,697,847,978.10/607,947.12
6. Step 6: Final answer
   x = 238,010.58