Finding the Fourth Proportional to 72,277.47, 108,405.27 and 19,691.10

Step by Step Solution

1. Step 1: Write the proportion equation
   72,277.47 : 108,405.27 = 19,691.10 : x
2. Step 2: Convert to fraction form
   72,277.47/108,405.27 = 19,691.10/x
3. Step 3: Cross multiply
   72,277.47x = 108,405.27 × 19,691.10
4. Step 4: Simplify right side
   72,277.47x = 2,134,619,012.10
5. Step 5: Solve for x
   x = 2,134,619,012.10/72,277.47
6. Step 6: Final answer
   x = 29,533.67