Finding the Fourth Proportional to 98,738.50, 136,259.22 and 54,026.50

Step by Step Solution

1. Step 1: Write the proportion equation
   98,738.50 : 136,259.22 = 54,026.50 : x
2. Step 2: Convert to fraction form
   98,738.50/136,259.22 = 54,026.50/x
3. Step 3: Cross multiply
   98,738.50x = 136,259.22 × 54,026.50
4. Step 4: Simplify right side
   98,738.50x = 7,361,608,749.33
5. Step 5: Solve for x
   x = 7,361,608,749.33/98,738.50
6. Step 6: Final answer
   x = 74,556.62