Finding the Fourth Proportional to 105,016.61, 157,548.14 and 30,136.97

Step by Step Solution

1. Step 1: Write the proportion equation
   105,016.61 : 157,548.14 = 30,136.97 : x
2. Step 2: Convert to fraction form
   105,016.61/157,548.14 = 30,136.97/x
3. Step 3: Cross multiply
   105,016.61x = 157,548.14 × 30,136.97
4. Step 4: Simplify right side
   105,016.61x = 4,748,023,568.74
5. Step 5: Solve for x
   x = 4,748,023,568.74/105,016.61
6. Step 6: Final answer
   x = 45,212.12