Finding the Fourth Proportional to 90,383.56, 135,612.50 and 39,756.52

Step by Step Solution

1. Step 1: Write the proportion equation
   90,383.56 : 135,612.50 = 39,756.52 : x
2. Step 2: Convert to fraction form
   90,383.56/135,612.50 = 39,756.52/x
3. Step 3: Cross multiply
   90,383.56x = 135,612.50 × 39,756.52
4. Step 4: Simplify right side
   90,383.56x = 5,391,481,068.50
5. Step 5: Solve for x
   x = 5,391,481,068.50/90,383.56
6. Step 6: Final answer
   x = 59,651.13