Finding the Fourth Proportional to 82,142,363.20, 113,320,878.24 and 49,529,197.12

Step by Step Solution

1. Step 1: Write the proportion equation
   82,142,363.20 : 113,320,878.24 = 49,529,197.12 : x
2. Step 2: Convert to fraction form
   82,142,363.20/113,320,878.24 = 49,529,197.12/x
3. Step 3: Cross multiply
   82,142,363.20x = 113,320,878.24 × 49,529,197.12
4. Step 4: Simplify right side
   82,142,363.20x = 5,612,692,116,160,478
5. Step 5: Solve for x
   x = 5,612,692,116,160,478/82,142,363.20
6. Step 6: Final answer
   x = 68,328,836.64