Finding the Fourth Proportional to 144,442,139.52, 199,330,130.56 and 82,563,806.72

Step by Step Solution

1. Step 1: Write the proportion equation
   144,442,139.52 : 199,330,130.56 = 82,563,806.72 : x
2. Step 2: Convert to fraction form
   144,442,139.52/199,330,130.56 = 82,563,806.72/x
3. Step 3: Cross multiply
   144,442,139.52x = 199,330,130.56 × 82,563,806.72
4. Step 4: Simplify right side
   144,442,139.52x = 16,457,454,373,028,206
5. Step 5: Solve for x
   x = 16,457,454,373,028,206/144,442,139.52
6. Step 6: Final answer
   x = 113,938,040.71