Finding the Fourth Proportional to 90,200.93, 135,303.82 and 40,269.29

Step by Step Solution

1. Step 1: Write the proportion equation
   90,200.93 : 135,303.82 = 40,269.29 : x
2. Step 2: Convert to fraction form
   90,200.93/135,303.82 = 40,269.29/x
3. Step 3: Cross multiply
   90,200.93x = 135,303.82 × 40,269.29
4. Step 4: Simplify right side
   90,200.93x = 5,448,587,988.50
5. Step 5: Solve for x
   x = 5,448,587,988.50/90,200.93
6. Step 6: Final answer
   x = 60,405.01