Finding the Fourth Proportional to 715,017.12, 986,483.52 and 404,877.48

Step by Step Solution

1. Step 1: Write the proportion equation
   715,017.12 : 986,483.52 = 404,877.48 : x
2. Step 2: Convert to fraction form
   715,017.12/986,483.52 = 404,877.48/x
3. Step 3: Cross multiply
   715,017.12x = 986,483.52 × 404,877.48
4. Step 4: Simplify right side
   715,017.12x = 399,404,961,639.13
5. Step 5: Solve for x
   x = 399,404,961,639.13/715,017.12
6. Step 6: Final answer
   x = 558,594.96