Finding the Fourth Proportional to 105,648.78, 158,613.96 and 61,307.34

Step by Step Solution

1. Step 1: Write the proportion equation
   105,648.78 : 158,613.96 = 61,307.34 : x
2. Step 2: Convert to fraction form
   105,648.78/158,613.96 = 61,307.34/x
3. Step 3: Cross multiply
   105,648.78x = 158,613.96 × 61,307.34
4. Step 4: Simplify right side
   105,648.78x = 9,724,199,974.47
5. Step 5: Solve for x
   x = 9,724,199,974.47/105,648.78
6. Step 6: Final answer
   x = 92,042.71