Finding the Fourth Proportional to 105,205, 145,187.22 and 60,493

Step by Step Solution

1. Step 1: Write the proportion equation
   105,205 : 145,187.22 = 60,493 : x
2. Step 2: Convert to fraction form
   105,205/145,187.22 = 60,493/x
3. Step 3: Cross multiply
   105,205x = 145,187.22 × 60,493
4. Step 4: Simplify right side
   105,205x = 8,782,810,499.46
5. Step 5: Solve for x
   x = 8,782,810,499.46/105,205
6. Step 6: Final answer
   x = 83,482.82