Finding the Fourth Proportional to 102,257.78, 141,022.42 and 64,466.42

Step by Step Solution

1. Step 1: Write the proportion equation
   102,257.78 : 141,022.42 = 64,466.42 : x
2. Step 2: Convert to fraction form
   102,257.78/141,022.42 = 64,466.42/x
3. Step 3: Cross multiply
   102,257.78x = 141,022.42 × 64,466.42
4. Step 4: Simplify right side
   102,257.78x = 9,091,209,690.86
5. Step 5: Solve for x
   x = 9,091,209,690.86/102,257.78
6. Step 6: Final answer
   x = 88,904.83