Finding the Fourth Proportional to 647,158.41, 893,081.61 and 375,387.21

Step by Step Solution

1. Step 1: Write the proportion equation
   647,158.41 : 893,081.61 = 375,387.21 : x
2. Step 2: Convert to fraction form
   647,158.41/893,081.61 = 375,387.21/x
3. Step 3: Cross multiply
   647,158.41x = 893,081.61 × 375,387.21
4. Step 4: Simplify right side
   647,158.41x = 335,251,413,880.21
5. Step 5: Solve for x
   x = 335,251,413,880.21/647,158.41
6. Step 6: Final answer
   x = 518,036.09