Finding the Fourth Proportional to 117,467.78, 162,105.54 and 63,752.80

Step by Step Solution

1. Step 1: Write the proportion equation
   117,467.78 : 162,105.54 = 63,752.80 : x
2. Step 2: Convert to fraction form
   117,467.78/162,105.54 = 63,752.80/x
3. Step 3: Cross multiply
   117,467.78x = 162,105.54 × 63,752.80
4. Step 4: Simplify right side
   117,467.78x = 10,334,682,070.51
5. Step 5: Solve for x
   x = 10,334,682,070.51/117,467.78
6. Step 6: Final answer
   x = 87,978.87