Finding the Fourth Proportional to 155,419.32, 214,479 and 91,761.24

Step by Step Solution

1. Step 1: Write the proportion equation
   155,419.32 : 214,479 = 91,761.24 : x
2. Step 2: Convert to fraction form
   155,419.32/214,479 = 91,761.24/x
3. Step 3: Cross multiply
   155,419.32x = 214,479 × 91,761.24
4. Step 4: Simplify right side
   155,419.32x = 19,680,858,993.96
5. Step 5: Solve for x
   x = 19,680,858,993.96/155,419.32
6. Step 6: Final answer
   x = 126,630.71