Finding the Fourth Proportional to 116,250.21, 160,434.56 and 65,266.29

Step by Step Solution

1. Step 1: Write the proportion equation
   116,250.21 : 160,434.56 = 65,266.29 : x
2. Step 2: Convert to fraction form
   116,250.21/160,434.56 = 65,266.29/x
3. Step 3: Cross multiply
   116,250.21x = 160,434.56 × 65,266.29
4. Step 4: Simplify right side
   116,250.21x = 10,470,968,251.95
5. Step 5: Solve for x
   x = 10,470,968,251.95/116,250.21
6. Step 6: Final answer
   x = 90,072.68