Finding the Fourth Proportional to 102,768.83, 141,823.52 and 57,454.34

Step by Step Solution

1. Step 1: Write the proportion equation
   102,768.83 : 141,823.52 = 57,454.34 : x
2. Step 2: Convert to fraction form
   102,768.83/141,823.52 = 57,454.34/x
3. Step 3: Cross multiply
   102,768.83x = 141,823.52 × 57,454.34
4. Step 4: Simplify right side
   102,768.83x = 8,148,375,741.69
5. Step 5: Solve for x
   x = 8,148,375,741.69/102,768.83
6. Step 6: Final answer
   x = 79,288.40