Finding the Fourth Proportional to 82,188.72, 123,096.23 and 64,307.94

Step by Step Solution

1. Step 1: Write the proportion equation
   82,188.72 : 123,096.23 = 64,307.94 : x
2. Step 2: Convert to fraction form
   82,188.72/123,096.23 = 64,307.94/x
3. Step 3: Cross multiply
   82,188.72x = 123,096.23 × 64,307.94
4. Step 4: Simplify right side
   82,188.72x = 7,916,064,651.53
5. Step 5: Solve for x
   x = 7,916,064,651.53/82,188.72
6. Step 6: Final answer
   x = 96,315.71