Finding the Fourth Proportional to 124,421, 171,700.98 and 79,709

Step by Step Solution

1. Step 1: Write the proportion equation
   124,421 : 171,700.98 = 79,709 : x
2. Step 2: Convert to fraction form
   124,421/171,700.98 = 79,709/x
3. Step 3: Cross multiply
   124,421x = 171,700.98 × 79,709
4. Step 4: Simplify right side
   124,421x = 13,686,113,414.82
5. Step 5: Solve for x
   x = 13,686,113,414.82/124,421
6. Step 6: Final answer
   x = 109,998.42