Finding the Fourth Proportional to 142,805.61, 197,026.71 and 82,368.15

Step by Step Solution

1. Step 1: Write the proportion equation
   142,805.61 : 197,026.71 = 82,368.15 : x
2. Step 2: Convert to fraction form
   142,805.61/197,026.71 = 82,368.15/x
3. Step 3: Cross multiply
   142,805.61x = 197,026.71 × 82,368.15
4. Step 4: Simplify right side
   142,805.61x = 16,228,725,603.29
5. Step 5: Solve for x
   x = 16,228,725,603.29/142,805.61
6. Step 6: Final answer
   x = 113,642.07