Finding the Fourth Proportional to 661,594.72, 992,523.20 and 188,298.72

Step by Step Solution

1. Step 1: Write the proportion equation
   661,594.72 : 992,523.20 = 188,298.72 : x
2. Step 2: Convert to fraction form
   661,594.72/992,523.20 = 188,298.72/x
3. Step 3: Cross multiply
   661,594.72x = 992,523.20 × 188,298.72
4. Step 4: Simplify right side
   661,594.72x = 186,890,848,130.30
5. Step 5: Solve for x
   x = 186,890,848,130.30/661,594.72
6. Step 6: Final answer
   x = 282,485.40