Finding the Fourth Proportional to 105,507.36, 145,610.06 and 63,064.98

Step by Step Solution

1. Step 1: Write the proportion equation
   105,507.36 : 145,610.06 = 63,064.98 : x
2. Step 2: Convert to fraction form
   105,507.36/145,610.06 = 63,064.98/x
3. Step 3: Cross multiply
   105,507.36x = 145,610.06 × 63,064.98
4. Step 4: Simplify right side
   105,507.36x = 9,182,895,206.37
5. Step 5: Solve for x
   x = 9,182,895,206.37/105,507.36
6. Step 6: Final answer
   x = 87,035.59