Finding the Fourth Proportional to 42,607.35, 63,910.76 and 13,025.07

Step by Step Solution

1. Step 1: Write the proportion equation
   42,607.35 : 63,910.76 = 13,025.07 : x
2. Step 2: Convert to fraction form
   42,607.35/63,910.76 = 13,025.07/x
3. Step 3: Cross multiply
   42,607.35x = 63,910.76 × 13,025.07
4. Step 4: Simplify right side
   42,607.35x = 832,442,057.63
5. Step 5: Solve for x
   x = 832,442,057.63/42,607.35
6. Step 6: Final answer
   x = 19,537.52