Finding the Fourth Proportional to 105,111.07, 157,642.94 and 30,214.51

Step by Step Solution

1. Step 1: Write the proportion equation
   105,111.07 : 157,642.94 = 30,214.51 : x
2. Step 2: Convert to fraction form
   105,111.07/157,642.94 = 30,214.51/x
3. Step 3: Cross multiply
   105,111.07x = 157,642.94 × 30,214.51
4. Step 4: Simplify right side
   105,111.07x = 4,763,103,868.49
5. Step 5: Solve for x
   x = 4,763,103,868.49/105,111.07
6. Step 6: Final answer
   x = 45,314.96