Finding the Fourth Proportional to 42,028.17, 63,051.48 and 12,448.32

Step by Step Solution

1. Step 1: Write the proportion equation
   42,028.17 : 63,051.48 = 12,448.32 : x
2. Step 2: Convert to fraction form
   42,028.17/63,051.48 = 12,448.32/x
3. Step 3: Cross multiply
   42,028.17x = 63,051.48 × 12,448.32
4. Step 4: Simplify right side
   42,028.17x = 784,884,999.51
5. Step 5: Solve for x
   x = 784,884,999.51/42,028.17
6. Step 6: Final answer
   x = 18,675.21