Finding the Fourth Proportional to 116,788, 175,292.76 and 72,280.12

Step by Step Solution

1. Step 1: Write the proportion equation
   116,788 : 175,292.76 = 72,280.12 : x
2. Step 2: Convert to fraction form
   116,788/175,292.76 = 72,280.12/x
3. Step 3: Cross multiply
   116,788x = 175,292.76 × 72,280.12
4. Step 4: Simplify right side
   116,788x = 12,670,181,727.93
5. Step 5: Solve for x
   x = 12,670,181,727.93/116,788
6. Step 6: Final answer
   x = 108,488.73