Finding the Fourth Proportional to 155,082.42, 214,017.46 and 87,099.53

Step by Step Solution

1. Step 1: Write the proportion equation
   155,082.42 : 214,017.46 = 87,099.53 : x
2. Step 2: Convert to fraction form
   155,082.42/214,017.46 = 87,099.53/x
3. Step 3: Cross multiply
   155,082.42x = 214,017.46 × 87,099.53
4. Step 4: Simplify right side
   155,082.42x = 18,640,818,889.96
5. Step 5: Solve for x
   x = 18,640,818,889.96/155,082.42
6. Step 6: Final answer
   x = 120,199.43