Finding the Fourth Proportional to 152,640.84, 210,401.71 and 120,323.06

Step by Step Solution

1. Step 1: Write the proportion equation
   152,640.84 : 210,401.71 = 120,323.06 : x
2. Step 2: Convert to fraction form
   152,640.84/210,401.71 = 120,323.06/x
3. Step 3: Cross multiply
   152,640.84x = 210,401.71 × 120,323.06
4. Step 4: Simplify right side
   152,640.84x = 25,316,177,576.43
5. Step 5: Solve for x
   x = 25,316,177,576.43/152,640.84
6. Step 6: Final answer
   x = 165,854.55