Finding the Fourth Proportional to 113,111.02, 156,005.76 and 82,885.06

Step by Step Solution

1. Step 1: Write the proportion equation
   113,111.02 : 156,005.76 = 82,885.06 : x
2. Step 2: Convert to fraction form
   113,111.02/156,005.76 = 82,885.06/x
3. Step 3: Cross multiply
   113,111.02x = 156,005.76 × 82,885.06
4. Step 4: Simplify right side
   113,111.02x = 12,930,546,777.95
5. Step 5: Solve for x
   x = 12,930,546,777.95/113,111.02
6. Step 6: Final answer
   x = 114,317.30