Finding the Fourth Proportional to 72,386.70, 108,576.72 and 19,796.06

Step by Step Solution

1. Step 1: Write the proportion equation
   72,386.70 : 108,576.72 = 19,796.06 : x
2. Step 2: Convert to fraction form
   72,386.70/108,576.72 = 19,796.06/x
3. Step 3: Cross multiply
   72,386.70x = 108,576.72 × 19,796.06
4. Step 4: Simplify right side
   72,386.70x = 2,149,391,263.72
5. Step 5: Solve for x
   x = 2,149,391,263.72/72,386.70
6. Step 6: Final answer
   x = 29,693.18