Finding the Fourth Proportional to 116,560.17, 174,176.72 and 87,519.47

Step by Step Solution

1. Step 1: Write the proportion equation
   116,560.17 : 174,176.72 = 87,519.47 : x
2. Step 2: Convert to fraction form
   116,560.17/174,176.72 = 87,519.47/x
3. Step 3: Cross multiply
   116,560.17x = 174,176.72 × 87,519.47
4. Step 4: Simplify right side
   116,560.17x = 15,243,854,218.58
5. Step 5: Solve for x
   x = 15,243,854,218.58/116,560.17
6. Step 6: Final answer
   x = 130,780.99