Finding the Fourth Proportional to 715,385, 1,073,243.34 and 209,925.32

Step by Step Solution

1. Step 1: Write the proportion equation
   715,385 : 1,073,243.34 = 209,925.32 : x
2. Step 2: Convert to fraction form
   715,385/1,073,243.34 = 209,925.32/x
3. Step 3: Cross multiply
   715,385x = 1,073,243.34 × 209,925.32
4. Step 4: Simplify right side
   715,385x = 225,300,951,587.37
5. Step 5: Solve for x
   x = 225,300,951,587.37/715,385
6. Step 6: Final answer
   x = 314,936.64