Finding the Fourth Proportional to 65,625, 90,567.36 and 37,339.80

Step by Step Solution

1. Step 1: Write the proportion equation
   65,625 : 90,567.36 = 37,339.80 : x
2. Step 2: Convert to fraction form
   65,625/90,567.36 = 37,339.80/x
3. Step 3: Cross multiply
   65,625x = 90,567.36 × 37,339.80
4. Step 4: Simplify right side
   65,625x = 3,381,767,108.93
5. Step 5: Solve for x
   x = 3,381,767,108.93/65,625
6. Step 6: Final answer
   x = 51,531.69