Finding the Fourth Proportional to 162,004.72, 243,005.64 and 51,196.72

Step by Step Solution

1. Step 1: Write the proportion equation
   162,004.72 : 243,005.64 = 51,196.72 : x
2. Step 2: Convert to fraction form
   162,004.72/243,005.64 = 51,196.72/x
3. Step 3: Cross multiply
   162,004.72x = 243,005.64 × 51,196.72
4. Step 4: Simplify right side
   162,004.72x = 12,441,091,709.50
5. Step 5: Solve for x
   x = 12,441,091,709.50/162,004.72
6. Step 6: Final answer
   x = 76,794.62