Finding the Fourth Proportional to 153,630, 212,009.52 and 82,974

Step by Step Solution

1. Step 1: Write the proportion equation
   153,630 : 212,009.52 = 82,974 : x
2. Step 2: Convert to fraction form
   153,630/212,009.52 = 82,974/x
3. Step 3: Cross multiply
   153,630x = 212,009.52 × 82,974
4. Step 4: Simplify right side
   153,630x = 17,591,277,912.48
5. Step 5: Solve for x
   x = 17,591,277,912.48/153,630
6. Step 6: Final answer
   x = 114,504.18