Finding the Fourth Proportional to 155,704.15, 214,871.72 and 84,084.17

Step by Step Solution

1. Step 1: Write the proportion equation
   155,704.15 : 214,871.72 = 84,084.17 : x
2. Step 2: Convert to fraction form
   155,704.15/214,871.72 = 84,084.17/x
3. Step 3: Cross multiply
   155,704.15x = 214,871.72 × 84,084.17
4. Step 4: Simplify right side
   155,704.15x = 18,067,308,737.89
5. Step 5: Solve for x
   x = 18,067,308,737.89/155,704.15
6. Step 6: Final answer
   x = 116,036.14