Finding the Fourth Proportional to 82,642.16, 123,964.62 and 43,276.16

Step by Step Solution

1. Step 1: Write the proportion equation
   82,642.16 : 123,964.62 = 43,276.16 : x
2. Step 2: Convert to fraction form
   82,642.16/123,964.62 = 43,276.16/x
3. Step 3: Cross multiply
   82,642.16x = 123,964.62 × 43,276.16
4. Step 4: Simplify right side
   82,642.16x = 5,364,712,729.46
5. Step 5: Solve for x
   x = 5,364,712,729.46/82,642.16
6. Step 6: Final answer
   x = 64,914.96