Finding the Fourth Proportional to 21,597,922.88, 29,812,639.52 and 12,434,218.56

Step by Step Solution

1. Step 1: Write the proportion equation
   21,597,922.88 : 29,812,639.52 = 12,434,218.56 : x
2. Step 2: Convert to fraction form
   21,597,922.88/29,812,639.52 = 12,434,218.56/x
3. Step 3: Cross multiply
   21,597,922.88x = 29,812,639.52 × 12,434,218.56
4. Step 4: Simplify right side
   21,597,922.88x = 370,696,875,642,173.50
5. Step 5: Solve for x
   x = 370,696,875,642,173.50/21,597,922.88
6. Step 6: Final answer
   x = 17,163,542.89