Finding the Fourth Proportional to 102,076.86, 140,870.75 and 56,759.49

Step by Step Solution

1. Step 1: Write the proportion equation
   102,076.86 : 140,870.75 = 56,759.49 : x
2. Step 2: Convert to fraction form
   102,076.86/140,870.75 = 56,759.49/x
3. Step 3: Cross multiply
   102,076.86x = 140,870.75 × 56,759.49
4. Step 4: Simplify right side
   102,076.86x = 7,995,751,642.12
5. Step 5: Solve for x
   x = 7,995,751,642.12/102,076.86
6. Step 6: Final answer
   x = 78,330.70