Finding the Fourth Proportional to 89,256.42, 133,910.55 and 42,548.58

Step by Step Solution

1. Step 1: Write the proportion equation
   89,256.42 : 133,910.55 = 42,548.58 : x
2. Step 2: Convert to fraction form
   89,256.42/133,910.55 = 42,548.58/x
3. Step 3: Cross multiply
   89,256.42x = 133,910.55 × 42,548.58
4. Step 4: Simplify right side
   89,256.42x = 5,697,703,749.52
5. Step 5: Solve for x
   x = 5,697,703,749.52/89,256.42
6. Step 6: Final answer
   x = 63,835.23