Finding the Fourth Proportional to 67,128, 92,636.96 and 37,320

Step by Step Solution

1. Step 1: Write the proportion equation
   67,128 : 92,636.96 = 37,320 : x
2. Step 2: Convert to fraction form
   67,128/92,636.96 = 37,320/x
3. Step 3: Cross multiply
   67,128x = 92,636.96 × 37,320
4. Step 4: Simplify right side
   67,128x = 3,457,211,347.20
5. Step 5: Solve for x
   x = 3,457,211,347.20/67,128
6. Step 6: Final answer
   x = 51,501.78