Finding the Fourth Proportional to 105,615.51, 158,430.56 and 30,736.28

Step by Step Solution

1. Step 1: Write the proportion equation
   105,615.51 : 158,430.56 = 30,736.28 : x
2. Step 2: Convert to fraction form
   105,615.51/158,430.56 = 30,736.28/x
3. Step 3: Cross multiply
   105,615.51x = 158,430.56 × 30,736.28
4. Step 4: Simplify right side
   105,615.51x = 4,869,565,106.88
5. Step 5: Solve for x
   x = 4,869,565,106.88/105,615.51
6. Step 6: Final answer
   x = 46,106.53