Finding the Fourth Proportional to 22,671,103.16, 31,284,941.87 and 12,880,188.47

Step by Step Solution

1. Step 1: Write the proportion equation
   22,671,103.16 : 31,284,941.87 = 12,880,188.47 : x
2. Step 2: Convert to fraction form
   22,671,103.16/31,284,941.87 = 12,880,188.47/x
3. Step 3: Cross multiply
   22,671,103.16x = 31,284,941.87 × 12,880,188.47
4. Step 4: Simplify right side
   22,671,103.16x = 402,955,947,337,768.56
5. Step 5: Solve for x
   x = 402,955,947,337,768.56/22,671,103.16
6. Step 6: Final answer
   x = 17,773,989.41