Finding the Fourth Proportional to 139,354,101.36, 209,039,287.68 and 42,312,974.76

Step by Step Solution

1. Step 1: Write the proportion equation
   139,354,101.36 : 209,039,287.68 = 42,312,974.76 : x
2. Step 2: Convert to fraction form
   139,354,101.36/209,039,287.68 = 42,312,974.76/x
3. Step 3: Cross multiply
   139,354,101.36x = 209,039,287.68 × 42,312,974.76
4. Step 4: Simplify right side
   139,354,101.36x = 8,845,074,103,452,219
5. Step 5: Solve for x
   x = 8,845,074,103,452,219/139,354,101.36
6. Step 6: Final answer
   x = 63,471,932.42