Finding the Fourth Proportional to 102,100.10, 140,896.56 and 56,776.34

Step by Step Solution

1. Step 1: Write the proportion equation
   102,100.10 : 140,896.56 = 56,776.34 : x
2. Step 2: Convert to fraction form
   102,100.10/140,896.56 = 56,776.34/x
3. Step 3: Cross multiply
   102,100.10x = 140,896.56 × 56,776.34
4. Step 4: Simplify right side
   102,100.10x = 7,999,591,560.54
5. Step 5: Solve for x
   x = 7,999,591,560.54/102,100.10
6. Step 6: Final answer
   x = 78,350.48