Finding the Fourth Proportional to 21,665,100.51, 29,898,199.94 and 11,742,300.10

Step by Step Solution

1. Step 1: Write the proportion equation
   21,665,100.51 : 29,898,199.94 = 11,742,300.10 : x
2. Step 2: Convert to fraction form
   21,665,100.51/29,898,199.94 = 11,742,300.10/x
3. Step 3: Cross multiply
   21,665,100.51x = 29,898,199.94 × 11,742,300.10
4. Step 4: Simplify right side
   21,665,100.51x = 351,073,636,123,943.25
5. Step 5: Solve for x
   x = 351,073,636,123,943.25/21,665,100.51
6. Step 6: Final answer
   x = 16,204,569.92