Finding the Fourth Proportional to 42,859.92, 64,300.14 and 17,886.07

Step by Step Solution

1. Step 1: Write the proportion equation
   42,859.92 : 64,300.14 = 17,886.07 : x
2. Step 2: Convert to fraction form
   42,859.92/64,300.14 = 17,886.07/x
3. Step 3: Cross multiply
   42,859.92x = 64,300.14 × 17,886.07
4. Step 4: Simplify right side
   42,859.92x = 1,150,076,805.05
5. Step 5: Solve for x
   x = 1,150,076,805.05/42,859.92
6. Step 6: Final answer
   x = 26,833.39