Finding the Fourth Proportional to 65,715.12, 90,681.84 and 37,415.16

Step by Step Solution

1. Step 1: Write the proportion equation
   65,715.12 : 90,681.84 = 37,415.16 : x
2. Step 2: Convert to fraction form
   65,715.12/90,681.84 = 37,415.16/x
3. Step 3: Cross multiply
   65,715.12x = 90,681.84 × 37,415.16
4. Step 4: Simplify right side
   65,715.12x = 3,392,875,552.69
5. Step 5: Solve for x
   x = 3,392,875,552.69/65,715.12
6. Step 6: Final answer
   x = 51,630.06