Finding the Fourth Proportional to 98,922.15, 136,503.50 and 58,629.31

Step by Step Solution

1. Step 1: Write the proportion equation
   98,922.15 : 136,503.50 = 58,629.31 : x
2. Step 2: Convert to fraction form
   98,922.15/136,503.50 = 58,629.31/x
3. Step 3: Cross multiply
   98,922.15x = 136,503.50 × 58,629.31
4. Step 4: Simplify right side
   98,922.15x = 8,003,105,383.18
5. Step 5: Solve for x
   x = 8,003,105,383.18/98,922.15
6. Step 6: Final answer
   x = 80,903.07