Finding the Fourth Proportional to 139,245,272.98, 192,163,662.61 and 83,499,769.28

Step by Step Solution

1. Step 1: Write the proportion equation
   139,245,272.98 : 192,163,662.61 = 83,499,769.28 : x
2. Step 2: Convert to fraction form
   139,245,272.98/192,163,662.61 = 83,499,769.28/x
3. Step 3: Cross multiply
   139,245,272.98x = 192,163,662.61 × 83,499,769.28
4. Step 4: Simplify right side
   139,245,272.98x = 16,045,621,492,206,422
5. Step 5: Solve for x
   x = 16,045,621,492,206,422/139,245,272.98
6. Step 6: Final answer
   x = 115,232,791.38