Finding the Fourth Proportional to 70,484.45, 105,539.61 and 55,134.04

Step by Step Solution

1. Step 1: Write the proportion equation
   70,484.45 : 105,539.61 = 55,134.04 : x
2. Step 2: Convert to fraction form
   70,484.45/105,539.61 = 55,134.04/x
3. Step 3: Cross multiply
   70,484.45x = 105,539.61 × 55,134.04
4. Step 4: Simplify right side
   70,484.45x = 5,818,825,022.23
5. Step 5: Solve for x
   x = 5,818,825,022.23/70,484.45
6. Step 6: Final answer
   x = 82,554.74