Finding the Fourth Proportional to 151,146.42, 208,578.69 and 87,482.94

Step by Step Solution

1. Step 1: Write the proportion equation
   151,146.42 : 208,578.69 = 87,482.94 : x
2. Step 2: Convert to fraction form
   151,146.42/208,578.69 = 87,482.94/x
3. Step 3: Cross multiply
   151,146.42x = 208,578.69 × 87,482.94
4. Step 4: Simplify right side
   151,146.42x = 18,247,077,022.55
5. Step 5: Solve for x
   x = 18,247,077,022.55/151,146.42
6. Step 6: Final answer
   x = 120,724.51