Finding the Fourth Proportional to 78,934.50, 108,929.61 and 45,400.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,934.50 : 108,929.61 = 45,400.50 : x
2. Step 2: Convert to fraction form
   78,934.50/108,929.61 = 45,400.50/x
3. Step 3: Cross multiply
   78,934.50x = 108,929.61 × 45,400.50
4. Step 4: Simplify right side
   78,934.50x = 4,945,458,758.81
5. Step 5: Solve for x
   x = 4,945,458,758.81/78,934.50
6. Step 6: Final answer
   x = 62,652.69