Finding the Fourth Proportional to 42,878,103.30, 64,280,981.97 and 18,598,751.01

Step by Step Solution

1. Step 1: Write the proportion equation
   42,878,103.30 : 64,280,981.97 = 18,598,751.01 : x
2. Step 2: Convert to fraction form
   42,878,103.30/64,280,981.97 = 18,598,751.01/x
3. Step 3: Cross multiply
   42,878,103.30x = 64,280,981.97 × 18,598,751.01
4. Step 4: Simplify right side
   42,878,103.30x = 1,195,545,978,338,329.25
5. Step 5: Solve for x
   x = 1,195,545,978,338,329.25/42,878,103.30
6. Step 6: Final answer
   x = 27,882,436.17