Finding the Fourth Proportional to 116,989.70, 175,482.99 and 28,242.72

Step by Step Solution

1. Step 1: Write the proportion equation
   116,989.70 : 175,482.99 = 28,242.72 : x
2. Step 2: Convert to fraction form
   116,989.70/175,482.99 = 28,242.72/x
3. Step 3: Cross multiply
   116,989.70x = 175,482.99 × 28,242.72
4. Step 4: Simplify right side
   116,989.70x = 4,956,116,951.33
5. Step 5: Solve for x
   x = 4,956,116,951.33/116,989.70
6. Step 6: Final answer
   x = 42,363.71