Finding the Fourth Proportional to 42,687,695.10, 64,033,314.12 and 12,395,558.10

Step by Step Solution

1. Step 1: Write the proportion equation
   42,687,695.10 : 64,033,314.12 = 12,395,558.10 : x
2. Step 2: Convert to fraction form
   42,687,695.10/64,033,314.12 = 12,395,558.10/x
3. Step 3: Cross multiply
   42,687,695.10x = 64,033,314.12 × 12,395,558.10
4. Step 4: Simplify right side
   42,687,695.10x = 793,728,665,510,010.38
5. Step 5: Solve for x
   x = 793,728,665,510,010.38/42,687,695.10
6. Step 6: Final answer
   x = 18,593,851.55