Finding the Fourth Proportional to 82,143,087.20, 113,321,868.56 and 49,529,921.12

Step by Step Solution

1. Step 1: Write the proportion equation
   82,143,087.20 : 113,321,868.56 = 49,529,921.12 : x
2. Step 2: Convert to fraction form
   82,143,087.20/113,321,868.56 = 49,529,921.12/x
3. Step 3: Cross multiply
   82,143,087.20x = 113,321,868.56 × 49,529,921.12
4. Step 4: Simplify right side
   82,143,087.20x = 5,612,823,210,947,808
5. Step 5: Solve for x
   x = 5,612,823,210,947,808/82,143,087.20
6. Step 6: Final answer
   x = 68,329,830.33