Finding the Fourth Proportional to 72,638.88, 108,902.96 and 37,556.16

Step by Step Solution

1. Step 1: Write the proportion equation
   72,638.88 : 108,902.96 = 37,556.16 : x
2. Step 2: Convert to fraction form
   72,638.88/108,902.96 = 37,556.16/x
3. Step 3: Cross multiply
   72,638.88x = 108,902.96 × 37,556.16
4. Step 4: Simplify right side
   72,638.88x = 4,089,976,990.23
5. Step 5: Solve for x
   x = 4,089,976,990.23/72,638.88
6. Step 6: Final answer
   x = 56,305.62