Finding the Fourth Proportional to 76,144.88, 105,127.59 and 48,931.98

Step by Step Solution

1. Step 1: Write the proportion equation
   76,144.88 : 105,127.59 = 48,931.98 : x
2. Step 2: Convert to fraction form
   76,144.88/105,127.59 = 48,931.98/x
3. Step 3: Cross multiply
   76,144.88x = 105,127.59 × 48,931.98
4. Step 4: Simplify right side
   76,144.88x = 5,144,101,131.33
5. Step 5: Solve for x
   x = 5,144,101,131.33/76,144.88
6. Step 6: Final answer
   x = 67,556.76