Finding the Fourth Proportional to 139,110,642.68, 209,665,870.57 and 119,911,596.62

Step by Step Solution

1. Step 1: Write the proportion equation
   139,110,642.68 : 209,665,870.57 = 119,911,596.62 : x
2. Step 2: Convert to fraction form
   139,110,642.68/209,665,870.57 = 119,911,596.62/x
3. Step 3: Cross multiply
   139,110,642.68x = 209,665,870.57 × 119,911,596.62
4. Step 4: Simplify right side
   139,110,642.68x = 25,141,369,295,872,528
5. Step 5: Solve for x
   x = 25,141,369,295,872,528/139,110,642.68
6. Step 6: Final answer
   x = 180,729,301.60