Finding the Fourth Proportional to 90,758.72, 136,138.24 and 35,354.72

Step by Step Solution

1. Step 1: Write the proportion equation
   90,758.72 : 136,138.24 = 35,354.72 : x
2. Step 2: Convert to fraction form
   90,758.72/136,138.24 = 35,354.72/x
3. Step 3: Cross multiply
   90,758.72x = 136,138.24 × 35,354.72
4. Step 4: Simplify right side
   90,758.72x = 4,813,129,356.49
5. Step 5: Solve for x
   x = 4,813,129,356.49/90,758.72
6. Step 6: Final answer
   x = 53,032.14