Finding the Fourth Proportional to 102,834.69, 141,919.06 and 57,516.86

Step by Step Solution

1. Step 1: Write the proportion equation
   102,834.69 : 141,919.06 = 57,516.86 : x
2. Step 2: Convert to fraction form
   102,834.69/141,919.06 = 57,516.86/x
3. Step 3: Cross multiply
   102,834.69x = 141,919.06 × 57,516.86
4. Step 4: Simplify right side
   102,834.69x = 8,162,738,010.22
5. Step 5: Solve for x
   x = 8,162,738,010.22/102,834.69
6. Step 6: Final answer
   x = 79,377.28