Finding the Fourth Proportional to 98,808.72, 136,354.68 and 54,096.72

Step by Step Solution

1. Step 1: Write the proportion equation
   98,808.72 : 136,354.68 = 54,096.72 : x
2. Step 2: Convert to fraction form
   98,808.72/136,354.68 = 54,096.72/x
3. Step 3: Cross multiply
   98,808.72x = 136,354.68 × 54,096.72
4. Step 4: Simplify right side
   98,808.72x = 7,376,340,944.65
5. Step 5: Solve for x
   x = 7,376,340,944.65/98,808.72
6. Step 6: Final answer
   x = 74,652.73