Finding the Fourth Proportional to 686,892.24, 1,030,221.72 and 181,458.72

Step by Step Solution

1. Step 1: Write the proportion equation
   686,892.24 : 1,030,221.72 = 181,458.72 : x
2. Step 2: Convert to fraction form
   686,892.24/1,030,221.72 = 181,458.72/x
3. Step 3: Cross multiply
   686,892.24x = 1,030,221.72 × 181,458.72
4. Step 4: Simplify right side
   686,892.24x = 186,942,714,627.40
5. Step 5: Solve for x
   x = 186,942,714,627.40/686,892.24
6. Step 6: Final answer
   x = 272,157.27