Finding the Fourth Proportional to 102,729.82, 141,756.59 and 70,492.09

Step by Step Solution

1. Step 1: Write the proportion equation
   102,729.82 : 141,756.59 = 70,492.09 : x
2. Step 2: Convert to fraction form
   102,729.82/141,756.59 = 70,492.09/x
3. Step 3: Cross multiply
   102,729.82x = 141,756.59 × 70,492.09
4. Step 4: Simplify right side
   102,729.82x = 9,992,718,300.37
5. Step 5: Solve for x
   x = 9,992,718,300.37/102,729.82
6. Step 6: Final answer
   x = 97,271.84