Finding the Fourth Proportional to 279,108.72, 418,667.84 and 79,434.24

Step by Step Solution

1. Step 1: Write the proportion equation
   279,108.72 : 418,667.84 = 79,434.24 : x
2. Step 2: Convert to fraction form
   279,108.72/418,667.84 = 79,434.24/x
3. Step 3: Cross multiply
   279,108.72x = 418,667.84 × 79,434.24
4. Step 4: Simplify right side
   279,108.72x = 33,256,561,682.84
5. Step 5: Solve for x
   x = 33,256,561,682.84/279,108.72
6. Step 6: Final answer
   x = 119,152.71