Finding the Fourth Proportional to 158,997, 219,415.14 and 91,013.59

Step by Step Solution

1. Step 1: Write the proportion equation
   158,997 : 219,415.14 = 91,013.59 : x
2. Step 2: Convert to fraction form
   158,997/219,415.14 = 91,013.59/x
3. Step 3: Cross multiply
   158,997x = 219,415.14 × 91,013.59
4. Step 4: Simplify right side
   158,997x = 19,969,759,591.75
5. Step 5: Solve for x
   x = 19,969,759,591.75/158,997
6. Step 6: Final answer
   x = 125,598.34