Finding the Fourth Proportional to 76,885.98, 115,348.17 and 21,481.50

Step by Step Solution

1. Step 1: Write the proportion equation
   76,885.98 : 115,348.17 = 21,481.50 : x
2. Step 2: Convert to fraction form
   76,885.98/115,348.17 = 21,481.50/x
3. Step 3: Cross multiply
   76,885.98x = 115,348.17 × 21,481.50
4. Step 4: Simplify right side
   76,885.98x = 2,477,851,713.86
5. Step 5: Solve for x
   x = 2,477,851,713.86/76,885.98
6. Step 6: Final answer
   x = 32,227.61