Finding the Fourth Proportional to 42,607.44, 63,911.34 and 13,025.16

Step by Step Solution

1. Step 1: Write the proportion equation
   42,607.44 : 63,911.34 = 13,025.16 : x
2. Step 2: Convert to fraction form
   42,607.44/63,911.34 = 13,025.16/x
3. Step 3: Cross multiply
   42,607.44x = 63,911.34 × 13,025.16
4. Step 4: Simplify right side
   42,607.44x = 832,455,429.31
5. Step 5: Solve for x
   x = 832,455,429.31/42,607.44
6. Step 6: Final answer
   x = 19,537.80