Finding the Fourth Proportional to 442,442.72, 663,666.72 and 110,018.72

Step by Step Solution

1. Step 1: Write the proportion equation
   442,442.72 : 663,666.72 = 110,018.72 : x
2. Step 2: Convert to fraction form
   442,442.72/663,666.72 = 110,018.72/x
3. Step 3: Cross multiply
   442,442.72x = 663,666.72 × 110,018.72
4. Step 4: Simplify right side
   442,442.72x = 73,015,763,041.00
5. Step 5: Solve for x
   x = 73,015,763,041.00/442,442.72
6. Step 6: Final answer
   x = 165,028.74