Finding the Fourth Proportional to 42,965.37, 64,447.08 and 25,308.05

Step by Step Solution

1. Step 1: Write the proportion equation
   42,965.37 : 64,447.08 = 25,308.05 : x
2. Step 2: Convert to fraction form
   42,965.37/64,447.08 = 25,308.05/x
3. Step 3: Cross multiply
   42,965.37x = 64,447.08 × 25,308.05
4. Step 4: Simplify right side
   42,965.37x = 1,631,029,600.76
5. Step 5: Solve for x
   x = 1,631,029,600.76/42,965.37
6. Step 6: Final answer
   x = 37,961.49