Finding the Fourth Proportional to 21,520,142.17, 32,143,061.12 and 19,467,645.10

Step by Step Solution

1. Step 1: Write the proportion equation
   21,520,142.17 : 32,143,061.12 = 19,467,645.10 : x
2. Step 2: Convert to fraction form
   21,520,142.17/32,143,061.12 = 19,467,645.10/x
3. Step 3: Cross multiply
   21,520,142.17x = 32,143,061.12 × 19,467,645.10
4. Step 4: Simplify right side
   21,520,142.17x = 625,749,706,134,072.62
5. Step 5: Solve for x
   x = 625,749,706,134,072.62/21,520,142.17
6. Step 6: Final answer
   x = 29,077,396.48