Finding the Fourth Proportional to 116,136.59, 174,087.23 and 78,700.44

Step by Step Solution

1. Step 1: Write the proportion equation
   116,136.59 : 174,087.23 = 78,700.44 : x
2. Step 2: Convert to fraction form
   116,136.59/174,087.23 = 78,700.44/x
3. Step 3: Cross multiply
   116,136.59x = 174,087.23 × 78,700.44
4. Step 4: Simplify right side
   116,136.59x = 13,700,741,599.38
5. Step 5: Solve for x
   x = 13,700,741,599.38/116,136.59
6. Step 6: Final answer
   x = 117,970.94