Finding the Fourth Proportional to 21,364,071.98, 32,007,578.49 and 13,152,422.79

Step by Step Solution

1. Step 1: Write the proportion equation
   21,364,071.98 : 32,007,578.49 = 13,152,422.79 : x
2. Step 2: Convert to fraction form
   21,364,071.98/32,007,578.49 = 13,152,422.79/x
3. Step 3: Cross multiply
   21,364,071.98x = 32,007,578.49 × 13,152,422.79
4. Step 4: Simplify right side
   21,364,071.98x = 420,977,204,784,589.75
5. Step 5: Solve for x
   x = 420,977,204,784,589.75/21,364,071.98
6. Step 6: Final answer
   x = 19,704,914.18