Finding the Fourth Proportional to 371,085.89, 512,146.77 and 207,804.56

Step by Step Solution

1. Step 1: Write the proportion equation
   371,085.89 : 512,146.77 = 207,804.56 : x
2. Step 2: Convert to fraction form
   371,085.89/512,146.77 = 207,804.56/x
3. Step 3: Cross multiply
   371,085.89x = 512,146.77 × 207,804.56
4. Step 4: Simplify right side
   371,085.89x = 106,426,433,736.10
5. Step 5: Solve for x
   x = 106,426,433,736.10/371,085.89
6. Step 6: Final answer
   x = 286,797.31