Finding the Fourth Proportional to 89,734.34, 134,603.67 and 42,935.78

Step by Step Solution

1. Step 1: Write the proportion equation
   89,734.34 : 134,603.67 = 42,935.78 : x
2. Step 2: Convert to fraction form
   89,734.34/134,603.67 = 42,935.78/x
3. Step 3: Cross multiply
   89,734.34x = 134,603.67 × 42,935.78
4. Step 4: Simplify right side
   89,734.34x = 5,779,313,562.31
5. Step 5: Solve for x
   x = 5,779,313,562.31/89,734.34
6. Step 6: Final answer
   x = 64,404.70