Finding the Fourth Proportional to 37,139.64, 55,714.98 and 13,452.72

Step by Step Solution

1. Step 1: Write the proportion equation
   37,139.64 : 55,714.98 = 13,452.72 : x
2. Step 2: Convert to fraction form
   37,139.64/55,714.98 = 13,452.72/x
3. Step 3: Cross multiply
   37,139.64x = 55,714.98 × 13,452.72
4. Step 4: Simplify right side
   37,139.64x = 749,518,025.75
5. Step 5: Solve for x
   x = 749,518,025.75/37,139.64
6. Step 6: Final answer
   x = 20,181.08