Finding the Fourth Proportional to 66,574.72, 99,922.56 and 35,436.16

Step by Step Solution

1. Step 1: Write the proportion equation
   66,574.72 : 99,922.56 = 35,436.16 : x
2. Step 2: Convert to fraction form
   66,574.72/99,922.56 = 35,436.16/x
3. Step 3: Cross multiply
   66,574.72x = 99,922.56 × 35,436.16
4. Step 4: Simplify right side
   66,574.72x = 3,540,871,823.77
5. Step 5: Solve for x
   x = 3,540,871,823.77/66,574.72
6. Step 6: Final answer
   x = 53,186.43