Finding the Fourth Proportional to 105,544,198.78, 158,141,196.05 and 74,685,782.14

Step by Step Solution

1. Step 1: Write the proportion equation
   105,544,198.78 : 158,141,196.05 = 74,685,782.14 : x
2. Step 2: Convert to fraction form
   105,544,198.78/158,141,196.05 = 74,685,782.14/x
3. Step 3: Cross multiply
   105,544,198.78x = 158,141,196.05 × 74,685,782.14
4. Step 4: Simplify right side
   105,544,198.78x = 11,810,898,915,549,330
5. Step 5: Solve for x
   x = 11,810,898,915,549,330/105,544,198.78
6. Step 6: Final answer
   x = 111,904,766.46