Finding the Fourth Proportional to 12,020,763.49, 17,988,044.83 and 10,407,082.91

Step by Step Solution

1. Step 1: Write the proportion equation
   12,020,763.49 : 17,988,044.83 = 10,407,082.91 : x
2. Step 2: Convert to fraction form
   12,020,763.49/17,988,044.83 = 10,407,082.91/x
3. Step 3: Cross multiply
   12,020,763.49x = 17,988,044.83 × 10,407,082.91
4. Step 4: Simplify right side
   12,020,763.49x = 187,203,073,818,648.91
5. Step 5: Solve for x
   x = 187,203,073,818,648.91/12,020,763.49
6. Step 6: Final answer
   x = 15,573,309.80