Finding the Fourth Proportional to 116,397, 174,616.56 and 76,986.72

Step by Step Solution

1. Step 1: Write the proportion equation
   116,397 : 174,616.56 = 76,986.72 : x
2. Step 2: Convert to fraction form
   116,397/174,616.56 = 76,986.72/x
3. Step 3: Cross multiply
   116,397x = 174,616.56 × 76,986.72
4. Step 4: Simplify right side
   116,397x = 13,443,156,212.08
5. Step 5: Solve for x
   x = 13,443,156,212.08/116,397
6. Step 6: Final answer
   x = 115,494.01