Finding the Fourth Proportional to 152,380.49, 210,285.72 and 84,395.97

Step by Step Solution

1. Step 1: Write the proportion equation
   152,380.49 : 210,285.72 = 84,395.97 : x
2. Step 2: Convert to fraction form
   152,380.49/210,285.72 = 84,395.97/x
3. Step 3: Cross multiply
   152,380.49x = 210,285.72 × 84,395.97
4. Step 4: Simplify right side
   152,380.49x = 17,747,267,316.55
5. Step 5: Solve for x
   x = 17,747,267,316.55/152,380.49
6. Step 6: Final answer
   x = 116,466.80