Finding the Fourth Proportional to 37,434.72, 56,152.14 and 11,139.72

Step by Step Solution

1. Step 1: Write the proportion equation
   37,434.72 : 56,152.14 = 11,139.72 : x
2. Step 2: Convert to fraction form
   37,434.72/56,152.14 = 11,139.72/x
3. Step 3: Cross multiply
   37,434.72x = 56,152.14 × 11,139.72
4. Step 4: Simplify right side
   37,434.72x = 625,519,117.00
5. Step 5: Solve for x
   x = 625,519,117.00/37,434.72
6. Step 6: Final answer
   x = 16,709.60