Finding the Fourth Proportional to 64,429.75, 88,951.94 and 42,112.63

Step by Step Solution

1. Step 1: Write the proportion equation
   64,429.75 : 88,951.94 = 42,112.63 : x
2. Step 2: Convert to fraction form
   64,429.75/88,951.94 = 42,112.63/x
3. Step 3: Cross multiply
   64,429.75x = 88,951.94 × 42,112.63
4. Step 4: Simplify right side
   64,429.75x = 3,746,000,137.00
5. Step 5: Solve for x
   x = 3,746,000,137.00/64,429.75
6. Step 6: Final answer
   x = 58,140.85