Finding the Fourth Proportional to 64,066.87, 88,453.88 and 57,340.81

Step by Step Solution

1. Step 1: Write the proportion equation
   64,066.87 : 88,453.88 = 57,340.81 : x
2. Step 2: Convert to fraction form
   64,066.87/88,453.88 = 57,340.81/x
3. Step 3: Cross multiply
   64,066.87x = 88,453.88 × 57,340.81
4. Step 4: Simplify right side
   64,066.87x = 5,072,017,126.84
5. Step 5: Solve for x
   x = 5,072,017,126.84/64,066.87
6. Step 6: Final answer
   x = 79,167.55