Finding the Fourth Proportional to 42,882.32, 64,329.71 and 13,302.51

Step by Step Solution

1. Step 1: Write the proportion equation
   42,882.32 : 64,329.71 = 13,302.51 : x
2. Step 2: Convert to fraction form
   42,882.32/64,329.71 = 13,302.51/x
3. Step 3: Cross multiply
   42,882.32x = 64,329.71 × 13,302.51
4. Step 4: Simplify right side
   42,882.32x = 855,746,544.06
5. Step 5: Solve for x
   x = 855,746,544.06/42,882.32
6. Step 6: Final answer
   x = 19,955.70