Finding the Fourth Proportional to 82,877.49, 114,270.53 and 64,485.90

Step by Step Solution

1. Step 1: Write the proportion equation
   82,877.49 : 114,270.53 = 64,485.90 : x
2. Step 2: Convert to fraction form
   82,877.49/114,270.53 = 64,485.90/x
3. Step 3: Cross multiply
   82,877.49x = 114,270.53 × 64,485.90
4. Step 4: Simplify right side
   82,877.49x = 7,368,837,648.10
5. Step 5: Solve for x
   x = 7,368,837,648.10/82,877.49
6. Step 6: Final answer
   x = 88,912.41