Finding the Fourth Proportional to 65,307.12, 90,118.68 and 37,005.72

Step by Step Solution

1. Step 1: Write the proportion equation
   65,307.12 : 90,118.68 = 37,005.72 : x
2. Step 2: Convert to fraction form
   65,307.12/90,118.68 = 37,005.72/x
3. Step 3: Cross multiply
   65,307.12x = 90,118.68 × 37,005.72
4. Step 4: Simplify right side
   65,307.12x = 3,334,906,638.85
5. Step 5: Solve for x
   x = 3,334,906,638.85/65,307.12
6. Step 6: Final answer
   x = 51,064.98