Finding the Fourth Proportional to 98,778.88, 148,265.52 and 72,408.52

Step by Step Solution

1. Step 1: Write the proportion equation
   98,778.88 : 148,265.52 = 72,408.52 : x
2. Step 2: Convert to fraction form
   98,778.88/148,265.52 = 72,408.52/x
3. Step 3: Cross multiply
   98,778.88x = 148,265.52 × 72,408.52
4. Step 4: Simplify right side
   98,778.88x = 10,735,686,870.23
5. Step 5: Solve for x
   x = 10,735,686,870.23/98,778.88
6. Step 6: Final answer
   x = 108,684.03