Finding the Fourth Proportional to 82,188.72, 123,096.24 and 64,307.95

Step by Step Solution

1. Step 1: Write the proportion equation
   82,188.72 : 123,096.24 = 64,307.95 : x
2. Step 2: Convert to fraction form
   82,188.72/123,096.24 = 64,307.95/x
3. Step 3: Cross multiply
   82,188.72x = 123,096.24 × 64,307.95
4. Step 4: Simplify right side
   82,188.72x = 7,916,066,539.37
5. Step 5: Solve for x
   x = 7,916,066,539.37/82,188.72
6. Step 6: Final answer
   x = 96,315.73