Finding the Fourth Proportional to 98,789.82, 136,330.14 and 53,467.89

Step by Step Solution

1. Step 1: Write the proportion equation
   98,789.82 : 136,330.14 = 53,467.89 : x
2. Step 2: Convert to fraction form
   98,789.82/136,330.14 = 53,467.89/x
3. Step 3: Cross multiply
   98,789.82x = 136,330.14 × 53,467.89
4. Step 4: Simplify right side
   98,789.82x = 7,289,284,929.20
5. Step 5: Solve for x
   x = 7,289,284,929.20/98,789.82
6. Step 6: Final answer
   x = 73,785.79