Finding the Fourth Proportional to 115,871.99, 173,667.63 and 49,172.00

Step by Step Solution

1. Step 1: Write the proportion equation
   115,871.99 : 173,667.63 = 49,172.00 : x
2. Step 2: Convert to fraction form
   115,871.99/173,667.63 = 49,172.00/x
3. Step 3: Cross multiply
   115,871.99x = 173,667.63 × 49,172.00
4. Step 4: Simplify right side
   115,871.99x = 8,539,583,834.02
5. Step 5: Solve for x
   x = 8,539,583,834.02/115,871.99
6. Step 6: Final answer
   x = 73,698.43