Finding the Fourth Proportional to 64,972.14, 89,665.16 and 45,858.03

Step by Step Solution

1. Step 1: Write the proportion equation
   64,972.14 : 89,665.16 = 45,858.03 : x
2. Step 2: Convert to fraction form
   64,972.14/89,665.16 = 45,858.03/x
3. Step 3: Cross multiply
   64,972.14x = 89,665.16 × 45,858.03
4. Step 4: Simplify right side
   64,972.14x = 4,111,867,597.23
5. Step 5: Solve for x
   x = 4,111,867,597.23/64,972.14
6. Step 6: Final answer
   x = 63,286.63