Finding the Fourth Proportional to 42,621,427.30, 63,837,662.55 and 25,615,315.30

Step by Step Solution

1. Step 1: Write the proportion equation
   42,621,427.30 : 63,837,662.55 = 25,615,315.30 : x
2. Step 2: Convert to fraction form
   42,621,427.30/63,837,662.55 = 25,615,315.30/x
3. Step 3: Cross multiply
   42,621,427.30x = 63,837,662.55 × 25,615,315.30
4. Step 4: Simplify right side
   42,621,427.30x = 1,635,221,854,233,252
5. Step 5: Solve for x
   x = 1,635,221,854,233,252/42,621,427.30
6. Step 6: Final answer
   x = 38,366,191.79