Finding the Fourth Proportional to 82,427.19, 123,448.51 and 60,185.40

Step by Step Solution

1. Step 1: Write the proportion equation
   82,427.19 : 123,448.51 = 60,185.40 : x
2. Step 2: Convert to fraction form
   82,427.19/123,448.51 = 60,185.40/x
3. Step 3: Cross multiply
   82,427.19x = 123,448.51 × 60,185.40
4. Step 4: Simplify right side
   82,427.19x = 7,429,798,028.99
5. Step 5: Solve for x
   x = 7,429,798,028.99/82,427.19
6. Step 6: Final answer
   x = 90,137.71