Finding the Fourth Proportional to 102,256.42, 141,113.55 and 56,933.23

Step by Step Solution

1. Step 1: Write the proportion equation
   102,256.42 : 141,113.55 = 56,933.23 : x
2. Step 2: Convert to fraction form
   102,256.42/141,113.55 = 56,933.23/x
3. Step 3: Cross multiply
   102,256.42x = 141,113.55 × 56,933.23
4. Step 4: Simplify right side
   102,256.42x = 8,034,050,198.27
5. Step 5: Solve for x
   x = 8,034,050,198.27/102,256.42
6. Step 6: Final answer
   x = 78,567.69