Finding the Fourth Proportional to 117,445.65, 162,074.18 and 63,729.30

Step by Step Solution

1. Step 1: Write the proportion equation
   117,445.65 : 162,074.18 = 63,729.30 : x
2. Step 2: Convert to fraction form
   117,445.65/162,074.18 = 63,729.30/x
3. Step 3: Cross multiply
   117,445.65x = 162,074.18 × 63,729.30
4. Step 4: Simplify right side
   117,445.65x = 10,328,873,720.83
5. Step 5: Solve for x
   x = 10,328,873,720.83/117,445.65
6. Step 6: Final answer
   x = 87,945.99