Finding the Fourth Proportional to 65,404.38, 90,275.30 and 38,564.76

Step by Step Solution

1. Step 1: Write the proportion equation
   65,404.38 : 90,275.30 = 38,564.76 : x
2. Step 2: Convert to fraction form
   65,404.38/90,275.30 = 38,564.76/x
3. Step 3: Cross multiply
   65,404.38x = 90,275.30 × 38,564.76
4. Step 4: Simplify right side
   65,404.38x = 3,481,445,085.60
5. Step 5: Solve for x
   x = 3,481,445,085.60/65,404.38
6. Step 6: Final answer
   x = 53,229.54