Finding the Fourth Proportional to 88,764.75, 133,212.74 and 42,017.63

Step by Step Solution

1. Step 1: Write the proportion equation
   88,764.75 : 133,212.74 = 42,017.63 : x
2. Step 2: Convert to fraction form
   88,764.75/133,212.74 = 42,017.63/x
3. Step 3: Cross multiply
   88,764.75x = 133,212.74 × 42,017.63
4. Step 4: Simplify right side
   88,764.75x = 5,597,282,744.45
5. Step 5: Solve for x
   x = 5,597,282,744.45/88,764.75
6. Step 6: Final answer
   x = 63,057.49