Finding the Fourth Proportional to 31,354,849.40, 47,013,968.91 and 12,163,180.82

Step by Step Solution

1. Step 1: Write the proportion equation
   31,354,849.40 : 47,013,968.91 = 12,163,180.82 : x
2. Step 2: Convert to fraction form
   31,354,849.40/47,013,968.91 = 12,163,180.82/x
3. Step 3: Cross multiply
   31,354,849.40x = 47,013,968.91 × 12,163,180.82
4. Step 4: Simplify right side
   31,354,849.40x = 571,839,404,918,188.25
5. Step 5: Solve for x
   x = 571,839,404,918,188.25/31,354,849.40
6. Step 6: Final answer
   x = 18,237,670.28