Finding the Fourth Proportional to 116,123.48, 173,889.78 and 76,560.56

Step by Step Solution

1. Step 1: Write the proportion equation
   116,123.48 : 173,889.78 = 76,560.56 : x
2. Step 2: Convert to fraction form
   116,123.48/173,889.78 = 76,560.56/x
3. Step 3: Cross multiply
   116,123.48x = 173,889.78 × 76,560.56
4. Step 4: Simplify right side
   116,123.48x = 13,313,098,935.08
5. Step 5: Solve for x
   x = 13,313,098,935.08/116,123.48
6. Step 6: Final answer
   x = 114,646.06