Finding the Fourth Proportional to 60,196.97, 90,212.41 and 45,389.61

Step by Step Solution

1. Step 1: Write the proportion equation
   60,196.97 : 90,212.41 = 45,389.61 : x
2. Step 2: Convert to fraction form
   60,196.97/90,212.41 = 45,389.61/x
3. Step 3: Cross multiply
   60,196.97x = 90,212.41 × 45,389.61
4. Step 4: Simplify right side
   60,196.97x = 4,094,706,107.06
5. Step 5: Solve for x
   x = 4,094,706,107.06/60,196.97
6. Step 6: Final answer
   x = 68,021.80