Finding the Fourth Proportional to 102,082.76, 140,882.82 and 56,764.04

Step by Step Solution

1. Step 1: Write the proportion equation
   102,082.76 : 140,882.82 = 56,764.04 : x
2. Step 2: Convert to fraction form
   102,082.76/140,882.82 = 56,764.04/x
3. Step 3: Cross multiply
   102,082.76x = 140,882.82 × 56,764.04
4. Step 4: Simplify right side
   102,082.76x = 7,997,078,029.79
5. Step 5: Solve for x
   x = 7,997,078,029.79/102,082.76
6. Step 6: Final answer
   x = 78,339.16