Finding the Fourth Proportional to 118,801,942.09, 163,943,753.79 and 65,878,357.30

Step by Step Solution

1. Step 1: Write the proportion equation
   118,801,942.09 : 163,943,753.79 = 65,878,357.30 : x
2. Step 2: Convert to fraction form
   118,801,942.09/163,943,753.79 = 65,878,357.30/x
3. Step 3: Cross multiply
   118,801,942.09x = 163,943,753.79 × 65,878,357.30
4. Step 4: Simplify right side
   118,801,942.09x = 10,800,345,189,280,848
5. Step 5: Solve for x
   x = 10,800,345,189,280,848/118,801,942.09
6. Step 6: Final answer
   x = 90,910,510.38