Finding the Fourth Proportional to 109,429.09, 151,040.82 and 71,293.30

Step by Step Solution

1. Step 1: Write the proportion equation
   109,429.09 : 151,040.82 = 71,293.30 : x
2. Step 2: Convert to fraction form
   109,429.09/151,040.82 = 71,293.30/x
3. Step 3: Cross multiply
   109,429.09x = 151,040.82 × 71,293.30
4. Step 4: Simplify right side
   109,429.09x = 10,768,198,492.51
5. Step 5: Solve for x
   x = 10,768,198,492.51/109,429.09
6. Step 6: Final answer
   x = 98,403.44