Finding the Fourth Proportional to 64,018.78, 88,345.86 and 35,724.52

Step by Step Solution

1. Step 1: Write the proportion equation
   64,018.78 : 88,345.86 = 35,724.52 : x
2. Step 2: Convert to fraction form
   64,018.78/88,345.86 = 35,724.52/x
3. Step 3: Cross multiply
   64,018.78x = 88,345.86 × 35,724.52
4. Step 4: Simplify right side
   64,018.78x = 3,156,113,442.49
5. Step 5: Solve for x
   x = 3,156,113,442.49/64,018.78
6. Step 6: Final answer
   x = 49,299.81