Finding the Fourth Proportional to 102,912.82, 142,027.32 and 57,595.34

Step by Step Solution

1. Step 1: Write the proportion equation
   102,912.82 : 142,027.32 = 57,595.34 : x
2. Step 2: Convert to fraction form
   102,912.82/142,027.32 = 57,595.34/x
3. Step 3: Cross multiply
   102,912.82x = 142,027.32 × 57,595.34
4. Step 4: Simplify right side
   102,912.82x = 8,180,111,784.69
5. Step 5: Solve for x
   x = 8,180,111,784.69/102,912.82
6. Step 6: Final answer
   x = 79,485.84