Finding the Fourth Proportional to 116,724.15, 161,093.61 and 76,447.98

Step by Step Solution

1. Step 1: Write the proportion equation
   116,724.15 : 161,093.61 = 76,447.98 : x
2. Step 2: Convert to fraction form
   116,724.15/161,093.61 = 76,447.98/x
3. Step 3: Cross multiply
   116,724.15x = 161,093.61 × 76,447.98
4. Step 4: Simplify right side
   116,724.15x = 12,315,281,075.41
5. Step 5: Solve for x
   x = 12,315,281,075.41/116,724.15
6. Step 6: Final answer
   x = 105,507.57