Finding the Fourth Proportional to 21,868,920.17, 30,179,035.10 and 12,576,051.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,868,920.17 : 30,179,035.10 = 12,576,051.50 : x
2. Step 2: Convert to fraction form
   21,868,920.17/30,179,035.10 = 12,576,051.50/x
3. Step 3: Cross multiply
   21,868,920.17x = 30,179,035.10 × 12,576,051.50
4. Step 4: Simplify right side
   21,868,920.17x = 379,533,099,665,238.31
5. Step 5: Solve for x
   x = 379,533,099,665,238.31/21,868,920.17
6. Step 6: Final answer
   x = 17,354,908.09