Finding the Fourth Proportional to 152,469.33, 210,404.55 and 84,485.70

Step by Step Solution

1. Step 1: Write the proportion equation
   152,469.33 : 210,404.55 = 84,485.70 : x
2. Step 2: Convert to fraction form
   152,469.33/210,404.55 = 84,485.70/x
3. Step 3: Cross multiply
   152,469.33x = 210,404.55 × 84,485.70
4. Step 4: Simplify right side
   152,469.33x = 17,776,175,689.94
5. Step 5: Solve for x
   x = 17,776,175,689.94/152,469.33
6. Step 6: Final answer
   x = 116,588.53