Finding the Fourth Proportional to 116,143.35, 174,097.35 and 78,707.18

Step by Step Solution

1. Step 1: Write the proportion equation
   116,143.35 : 174,097.35 = 78,707.18 : x
2. Step 2: Convert to fraction form
   116,143.35/174,097.35 = 78,707.18/x
3. Step 3: Cross multiply
   116,143.35x = 174,097.35 × 78,707.18
4. Step 4: Simplify right side
   116,143.35x = 13,702,710,593.49
5. Step 5: Solve for x
   x = 13,702,710,593.49/116,143.35
6. Step 6: Final answer
   x = 117,981.02