Finding the Fourth Proportional to 155,459.59, 214,515.16 and 98,077.27

Step by Step Solution

1. Step 1: Write the proportion equation
   155,459.59 : 214,515.16 = 98,077.27 : x
2. Step 2: Convert to fraction form
   155,459.59/214,515.16 = 98,077.27/x
3. Step 3: Cross multiply
   155,459.59x = 214,515.16 × 98,077.27
4. Step 4: Simplify right side
   155,459.59x = 21,039,061,266.41
5. Step 5: Solve for x
   x = 21,039,061,266.41/155,459.59
6. Step 6: Final answer
   x = 135,334.60