Finding the Fourth Proportional to 139,704,948.63, 192,803,018.74 and 80,982,773.91

Step by Step Solution

1. Step 1: Write the proportion equation
   139,704,948.63 : 192,803,018.74 = 80,982,773.91 : x
2. Step 2: Convert to fraction form
   139,704,948.63/192,803,018.74 = 80,982,773.91/x
3. Step 3: Cross multiply
   139,704,948.63x = 192,803,018.74 × 80,982,773.91
4. Step 4: Simplify right side
   139,704,948.63x = 15,613,723,275,584,456
5. Step 5: Solve for x
   x = 15,613,723,275,584,456/139,704,948.63
6. Step 6: Final answer
   x = 111,762,134.62