Finding the Fourth Proportional to 65,477.24, 90,368.86 and 38,622.72

Step by Step Solution

1. Step 1: Write the proportion equation
   65,477.24 : 90,368.86 = 38,622.72 : x
2. Step 2: Convert to fraction form
   65,477.24/90,368.86 = 38,622.72/x
3. Step 3: Cross multiply
   65,477.24x = 90,368.86 × 38,622.72
4. Step 4: Simplify right side
   65,477.24x = 3,490,291,176.50
5. Step 5: Solve for x
   x = 3,490,291,176.50/65,477.24
6. Step 6: Final answer
   x = 53,305.41