Finding the Fourth Proportional to 212,376.72, 293,064.72 and 126,330.96

Step by Step Solution

1. Step 1: Write the proportion equation
   212,376.72 : 293,064.72 = 126,330.96 : x
2. Step 2: Convert to fraction form
   212,376.72/293,064.72 = 126,330.96/x
3. Step 3: Cross multiply
   212,376.72x = 293,064.72 × 126,330.96
4. Step 4: Simplify right side
   212,376.72x = 37,023,147,419.73
5. Step 5: Solve for x
   x = 37,023,147,419.73/212,376.72
6. Step 6: Final answer
   x = 174,327.71