Finding the Fourth Proportional to 103,039.29, 142,211.36 and 70,747.49

Step by Step Solution

1. Step 1: Write the proportion equation
   103,039.29 : 142,211.36 = 70,747.49 : x
2. Step 2: Convert to fraction form
   103,039.29/142,211.36 = 70,747.49/x
3. Step 3: Cross multiply
   103,039.29x = 142,211.36 × 70,747.49
4. Step 4: Simplify right side
   103,039.29x = 10,061,097,301.88
5. Step 5: Solve for x
   x = 10,061,097,301.88/103,039.29
6. Step 6: Final answer
   x = 97,643.31