Finding the Fourth Proportional to 21,647,450.88, 29,873,701.76 and 13,061,088

Step by Step Solution

1. Step 1: Write the proportion equation
   21,647,450.88 : 29,873,701.76 = 13,061,088 : x
2. Step 2: Convert to fraction form
   21,647,450.88/29,873,701.76 = 13,061,088/x
3. Step 3: Cross multiply
   21,647,450.88x = 29,873,701.76 × 13,061,088
4. Step 4: Simplify right side
   21,647,450.88x = 390,183,047,573,114.88
5. Step 5: Solve for x
   x = 390,183,047,573,114.88/21,647,450.88
6. Step 6: Final answer
   x = 18,024,433.90