Finding the Fourth Proportional to 72,016.60, 99,400.72 and 43,745.98

Step by Step Solution

1. Step 1: Write the proportion equation
   72,016.60 : 99,400.72 = 43,745.98 : x
2. Step 2: Convert to fraction form
   72,016.60/99,400.72 = 43,745.98/x
3. Step 3: Cross multiply
   72,016.60x = 99,400.72 × 43,745.98
4. Step 4: Simplify right side
   72,016.60x = 4,348,381,909.11
5. Step 5: Solve for x
   x = 4,348,381,909.11/72,016.60
6. Step 6: Final answer
   x = 60,380.27