Finding the Fourth Proportional to 162,030.72, 243,044.64 and 51,222.72

Step by Step Solution

1. Step 1: Write the proportion equation
   162,030.72 : 243,044.64 = 51,222.72 : x
2. Step 2: Convert to fraction form
   162,030.72/243,044.64 = 51,222.72/x
3. Step 3: Cross multiply
   162,030.72x = 243,044.64 × 51,222.72
4. Step 4: Simplify right side
   162,030.72x = 12,449,407,542.22
5. Step 5: Solve for x
   x = 12,449,407,542.22/162,030.72
6. Step 6: Final answer
   x = 76,833.62