Finding the Fourth Proportional to 393,570.72, 590,574.72 and 243,892.32

Step by Step Solution

1. Step 1: Write the proportion equation
   393,570.72 : 590,574.72 = 243,892.32 : x
2. Step 2: Convert to fraction form
   393,570.72/590,574.72 = 243,892.32/x
3. Step 3: Cross multiply
   393,570.72x = 590,574.72 × 243,892.32
4. Step 4: Simplify right side
   393,570.72x = 144,036,638,594.15
5. Step 5: Solve for x
   x = 144,036,638,594.15/393,570.72
6. Step 6: Final answer
   x = 365,973.97