Finding the Fourth Proportional to 105,303.87, 145,328.00 and 59,996.07

Step by Step Solution

1. Step 1: Write the proportion equation
   105,303.87 : 145,328.00 = 59,996.07 : x
2. Step 2: Convert to fraction form
   105,303.87/145,328.00 = 59,996.07/x
3. Step 3: Cross multiply
   105,303.87x = 145,328.00 × 59,996.07
4. Step 4: Simplify right side
   105,303.87x = 8,719,108,560.98
5. Step 5: Solve for x
   x = 8,719,108,560.98/105,303.87
6. Step 6: Final answer
   x = 82,799.51