Finding the Fourth Proportional to 31,990,356.88, 47,986,901.12 and 12,563,793.16

Step by Step Solution

1. Step 1: Write the proportion equation
   31,990,356.88 : 47,986,901.12 = 12,563,793.16 : x
2. Step 2: Convert to fraction form
   31,990,356.88/47,986,901.12 = 12,563,793.16/x
3. Step 3: Cross multiply
   31,990,356.88x = 47,986,901.12 × 12,563,793.16
4. Step 4: Simplify right side
   31,990,356.88x = 602,897,500,061,052.38
5. Step 5: Solve for x
   x = 602,897,500,061,052.38/31,990,356.88
6. Step 6: Final answer
   x = 18,846,226.14