Finding the Fourth Proportional to 42,039,266.49, 63,053,475.57 and 13,288,308.39

Step by Step Solution

1. Step 1: Write the proportion equation
   42,039,266.49 : 63,053,475.57 = 13,288,308.39 : x
2. Step 2: Convert to fraction form
   42,039,266.49/63,053,475.57 = 13,288,308.39/x
3. Step 3: Cross multiply
   42,039,266.49x = 63,053,475.57 × 13,288,308.39
4. Step 4: Simplify right side
   42,039,266.49x = 837,874,028,435,491.12
5. Step 5: Solve for x
   x = 837,874,028,435,491.12/42,039,266.49
6. Step 6: Final answer
   x = 19,930,748.05