Finding the Fourth Proportional to 82,143,085.20, 113,321,865.80 and 49,529,919.12

Step by Step Solution

1. Step 1: Write the proportion equation
   82,143,085.20 : 113,321,865.80 = 49,529,919.12 : x
2. Step 2: Convert to fraction form
   82,143,085.20/113,321,865.80 = 49,529,919.12/x
3. Step 3: Cross multiply
   82,143,085.20x = 113,321,865.80 × 49,529,919.12
4. Step 4: Simplify right side
   82,143,085.20x = 5,612,822,847,601,494
5. Step 5: Solve for x
   x = 5,612,822,847,601,494/82,143,085.20
6. Step 6: Final answer
   x = 68,329,827.57