Finding the Fourth Proportional to 129,739, 179,039.84 and 70,123

Step by Step Solution

1. Step 1: Write the proportion equation
   129,739 : 179,039.84 = 70,123 : x
2. Step 2: Convert to fraction form
   129,739/179,039.84 = 70,123/x
3. Step 3: Cross multiply
   129,739x = 179,039.84 × 70,123
4. Step 4: Simplify right side
   129,739x = 12,554,810,700.32
5. Step 5: Solve for x
   x = 12,554,810,700.32/129,739
6. Step 6: Final answer
   x = 96,769.75