Finding the Fourth Proportional to 36,972.84, 51,031.59 and 21,066.69

Step by Step Solution

1. Step 1: Write the proportion equation
   36,972.84 : 51,031.59 = 21,066.69 : x
2. Step 2: Convert to fraction form
   36,972.84/51,031.59 = 21,066.69/x
3. Step 3: Cross multiply
   36,972.84x = 51,031.59 × 21,066.69
4. Step 4: Simplify right side
   36,972.84x = 1,075,066,686.74
5. Step 5: Solve for x
   x = 1,075,066,686.74/36,972.84
6. Step 6: Final answer
   x = 29,077.20