Finding the Fourth Proportional to 103,500.45, 142,817.76 and 59,900.49

Step by Step Solution

1. Step 1: Write the proportion equation
   103,500.45 : 142,817.76 = 59,900.49 : x
2. Step 2: Convert to fraction form
   103,500.45/142,817.76 = 59,900.49/x
3. Step 3: Cross multiply
   103,500.45x = 142,817.76 × 59,900.49
4. Step 4: Simplify right side
   103,500.45x = 8,554,853,804.70
5. Step 5: Solve for x
   x = 8,554,853,804.70/103,500.45
6. Step 6: Final answer
   x = 82,655.23