Finding the Fourth Proportional to 42,053.67, 63,062.19 and 12,061.28

Step by Step Solution

1. Step 1: Write the proportion equation
   42,053.67 : 63,062.19 = 12,061.28 : x
2. Step 2: Convert to fraction form
   42,053.67/63,062.19 = 12,061.28/x
3. Step 3: Cross multiply
   42,053.67x = 63,062.19 × 12,061.28
4. Step 4: Simplify right side
   42,053.67x = 760,610,888.66
5. Step 5: Solve for x
   x = 760,610,888.66/42,053.67
6. Step 6: Final answer
   x = 18,086.67