Finding the Fourth Proportional to 129,870.84, 179,190.72 and 73,282.35

Step by Step Solution

1. Step 1: Write the proportion equation
   129,870.84 : 179,190.72 = 73,282.35 : x
2. Step 2: Convert to fraction form
   129,870.84/179,190.72 = 73,282.35/x
3. Step 3: Cross multiply
   129,870.84x = 179,190.72 × 73,282.35
4. Step 4: Simplify right side
   129,870.84x = 13,131,517,059.79
5. Step 5: Solve for x
   x = 13,131,517,059.79/129,870.84
6. Step 6: Final answer
   x = 101,112.13