Finding the Fourth Proportional to 42,073.21, 63,128.34 and 32,699.18

Step by Step Solution

1. Step 1: Write the proportion equation
   42,073.21 : 63,128.34 = 32,699.18 : x
2. Step 2: Convert to fraction form
   42,073.21/63,128.34 = 32,699.18/x
3. Step 3: Cross multiply
   42,073.21x = 63,128.34 × 32,699.18
4. Step 4: Simplify right side
   42,073.21x = 2,064,244,952.76
5. Step 5: Solve for x
   x = 2,064,244,952.76/42,073.21
6. Step 6: Final answer
   x = 49,063.17