Finding the Fourth Proportional to 105,636.74, 145,782.70 and 60,322.10

Step by Step Solution

1. Step 1: Write the proportion equation
   105,636.74 : 145,782.70 = 60,322.10 : x
2. Step 2: Convert to fraction form
   105,636.74/145,782.70 = 60,322.10/x
3. Step 3: Cross multiply
   105,636.74x = 145,782.70 × 60,322.10
4. Step 4: Simplify right side
   105,636.74x = 8,793,918,607.67
5. Step 5: Solve for x
   x = 8,793,918,607.67/105,636.74
6. Step 6: Final answer
   x = 83,246.78