Finding the Fourth Proportional to 138,017.04, 190,462.72 and 84,294.60

Step by Step Solution

1. Step 1: Write the proportion equation
   138,017.04 : 190,462.72 = 84,294.60 : x
2. Step 2: Convert to fraction form
   138,017.04/190,462.72 = 84,294.60/x
3. Step 3: Cross multiply
   138,017.04x = 190,462.72 × 84,294.60
4. Step 4: Simplify right side
   138,017.04x = 16,054,978,797.31
5. Step 5: Solve for x
   x = 16,054,978,797.31/138,017.04
6. Step 6: Final answer
   x = 116,326.06