Finding the Fourth Proportional to 105,302.42, 157,930.38 and 30,406.26

Step by Step Solution

1. Step 1: Write the proportion equation
   105,302.42 : 157,930.38 = 30,406.26 : x
2. Step 2: Convert to fraction form
   105,302.42/157,930.38 = 30,406.26/x
3. Step 3: Cross multiply
   105,302.42x = 157,930.38 × 30,406.26
4. Step 4: Simplify right side
   105,302.42x = 4,802,072,196.18
5. Step 5: Solve for x
   x = 4,802,072,196.18/105,302.42
6. Step 6: Final answer
   x = 45,602.68