Finding the Fourth Proportional to 90,312.72, 135,467.56 and 24,648.72

Step by Step Solution

1. Step 1: Write the proportion equation
   90,312.72 : 135,467.56 = 24,648.72 : x
2. Step 2: Convert to fraction form
   90,312.72/135,467.56 = 24,648.72/x
3. Step 3: Cross multiply
   90,312.72x = 135,467.56 × 24,648.72
4. Step 4: Simplify right side
   90,312.72x = 3,339,101,955.52
5. Step 5: Solve for x
   x = 3,339,101,955.52/90,312.72
6. Step 6: Final answer
   x = 36,972.67