Finding the Fourth Proportional to 64,250, 88,719.72 and 40,416.56

Step by Step Solution

1. Step 1: Write the proportion equation
   64,250 : 88,719.72 = 40,416.56 : x
2. Step 2: Convert to fraction form
   64,250/88,719.72 = 40,416.56/x
3. Step 3: Cross multiply
   64,250x = 88,719.72 × 40,416.56
4. Step 4: Simplify right side
   64,250x = 3,585,745,886.56
5. Step 5: Solve for x
   x = 3,585,745,886.56/64,250
6. Step 6: Final answer
   x = 55,809.27