Finding the Fourth Proportional to 98,150.67, 135,447.59 and 55,124.28

Step by Step Solution

1. Step 1: Write the proportion equation
   98,150.67 : 135,447.59 = 55,124.28 : x
2. Step 2: Convert to fraction form
   98,150.67/135,447.59 = 55,124.28/x
3. Step 3: Cross multiply
   98,150.67x = 135,447.59 × 55,124.28
4. Step 4: Simplify right side
   98,150.67x = 7,466,451,014.30
5. Step 5: Solve for x
   x = 7,466,451,014.30/98,150.67
6. Step 6: Final answer
   x = 76,071.32