Finding the Fourth Proportional to 103,597.98, 142,842.94 and 70,908.18

Step by Step Solution

1. Step 1: Write the proportion equation
   103,597.98 : 142,842.94 = 70,908.18 : x
2. Step 2: Convert to fraction form
   103,597.98/142,842.94 = 70,908.18/x
3. Step 3: Cross multiply
   103,597.98x = 142,842.94 × 70,908.18
4. Step 4: Simplify right side
   103,597.98x = 10,128,732,901.25
5. Step 5: Solve for x
   x = 10,128,732,901.25/103,597.98
6. Step 6: Final answer
   x = 97,769.60