Finding the Fourth Proportional to 139,161,983.76, 192,076,984.36 and 79,657,773.64

Step by Step Solution

1. Step 1: Write the proportion equation
   139,161,983.76 : 192,076,984.36 = 79,657,773.64 : x
2. Step 2: Convert to fraction form
   139,161,983.76/192,076,984.36 = 79,657,773.64/x
3. Step 3: Cross multiply
   139,161,983.76x = 192,076,984.36 × 79,657,773.64
4. Step 4: Simplify right side
   139,161,983.76x = 15,300,424,941,222,082
5. Step 5: Solve for x
   x = 15,300,424,941,222,082/139,161,983.76
6. Step 6: Final answer
   x = 109,946,872.90