Finding the Fourth Proportional to 98,998.46, 136,562.72 and 58,673.42

Step by Step Solution

1. Step 1: Write the proportion equation
   98,998.46 : 136,562.72 = 58,673.42 : x
2. Step 2: Convert to fraction form
   98,998.46/136,562.72 = 58,673.42/x
3. Step 3: Cross multiply
   98,998.46x = 136,562.72 × 58,673.42
4. Step 4: Simplify right side
   98,998.46x = 8,012,601,826.90
5. Step 5: Solve for x
   x = 8,012,601,826.90/98,998.46
6. Step 6: Final answer
   x = 80,936.63