Finding the Fourth Proportional to 63,172.16, 87,063.40 and 52,360.10

Step by Step Solution

1. Step 1: Write the proportion equation
   63,172.16 : 87,063.40 = 52,360.10 : x
2. Step 2: Convert to fraction form
   63,172.16/87,063.40 = 52,360.10/x
3. Step 3: Cross multiply
   63,172.16x = 87,063.40 × 52,360.10
4. Step 4: Simplify right side
   63,172.16x = 4,558,647,633.22
5. Step 5: Solve for x
   x = 4,558,647,633.22/63,172.16
6. Step 6: Final answer
   x = 72,162.29