Finding the Fourth Proportional to 35,810.56, 53,714.22 and 12,438.82

Step by Step Solution

1. Step 1: Write the proportion equation
   35,810.56 : 53,714.22 = 12,438.82 : x
2. Step 2: Convert to fraction form
   35,810.56/53,714.22 = 12,438.82/x
3. Step 3: Cross multiply
   35,810.56x = 53,714.22 × 12,438.82
4. Step 4: Simplify right side
   35,810.56x = 668,141,514.02
5. Step 5: Solve for x
   x = 668,141,514.02/35,810.56
6. Step 6: Final answer
   x = 18,657.67