Finding the Fourth Proportional to 139,161,986.22, 192,076,987.74 and 79,657,776.09

Step by Step Solution

1. Step 1: Write the proportion equation
   139,161,986.22 : 192,076,987.74 = 79,657,776.09 : x
2. Step 2: Convert to fraction form
   139,161,986.22/192,076,987.74 = 79,657,776.09/x
3. Step 3: Cross multiply
   139,161,986.22x = 192,076,987.74 × 79,657,776.09
4. Step 4: Simplify right side
   139,161,986.22x = 15,300,425,681,434,596
5. Step 5: Solve for x
   x = 15,300,425,681,434,596/139,161,986.22
6. Step 6: Final answer
   x = 109,946,876.28