Finding the Fourth Proportional to 90,965.49, 136,462.83 and 38,382.72

Step by Step Solution

1. Step 1: Write the proportion equation
   90,965.49 : 136,462.83 = 38,382.72 : x
2. Step 2: Convert to fraction form
   90,965.49/136,462.83 = 38,382.72/x
3. Step 3: Cross multiply
   90,965.49x = 136,462.83 × 38,382.72
4. Step 4: Simplify right side
   90,965.49x = 5,237,814,594.30
5. Step 5: Solve for x
   x = 5,237,814,594.30/90,965.49
6. Step 6: Final answer
   x = 57,580.24