Finding the Fourth Proportional to 116,134.53, 174,084.14 and 78,698.39

Step by Step Solution

1. Step 1: Write the proportion equation
   116,134.53 : 174,084.14 = 78,698.39 : x
2. Step 2: Convert to fraction form
   116,134.53/174,084.14 = 78,698.39/x
3. Step 3: Cross multiply
   116,134.53x = 174,084.14 × 78,698.39
4. Step 4: Simplify right side
   116,134.53x = 13,700,140,426.18
5. Step 5: Solve for x
   x = 13,700,140,426.18/116,134.53
6. Step 6: Final answer
   x = 117,967.85