Finding the Fourth Proportional to 90,150.72, 135,224.55 and 26,970.99

Step by Step Solution

1. Step 1: Write the proportion equation
   90,150.72 : 135,224.55 = 26,970.99 : x
2. Step 2: Convert to fraction form
   90,150.72/135,224.55 = 26,970.99/x
3. Step 3: Cross multiply
   90,150.72x = 135,224.55 × 26,970.99
4. Step 4: Simplify right side
   90,150.72x = 3,647,139,985.80
5. Step 5: Solve for x
   x = 3,647,139,985.80/90,150.72
6. Step 6: Final answer
   x = 40,456.03