Finding the Fourth Proportional to 715,093.43, 986,588.01 and 404,953.61

Step by Step Solution

1. Step 1: Write the proportion equation
   715,093.43 : 986,588.01 = 404,953.61 : x
2. Step 2: Convert to fraction form
   715,093.43/986,588.01 = 404,953.61/x
3. Step 3: Cross multiply
   715,093.43x = 986,588.01 × 404,953.61
4. Step 4: Simplify right side
   715,093.43x = 399,522,371,299.28
5. Step 5: Solve for x
   x = 399,522,371,299.28/715,093.43
6. Step 6: Final answer
   x = 558,699.55