Finding the Fourth Proportional to 70,498.94, 105,723.82 and 28,368.12

Step by Step Solution

1. Step 1: Write the proportion equation
   70,498.94 : 105,723.82 = 28,368.12 : x
2. Step 2: Convert to fraction form
   70,498.94/105,723.82 = 28,368.12/x
3. Step 3: Cross multiply
   70,498.94x = 105,723.82 × 28,368.12
4. Step 4: Simplify right side
   70,498.94x = 2,999,186,012.62
5. Step 5: Solve for x
   x = 2,999,186,012.62/70,498.94
6. Step 6: Final answer
   x = 42,542.29