Finding the Fourth Proportional to 42,042.83, 63,064.47 and 12,460.92

Step by Step Solution

1. Step 1: Write the proportion equation
   42,042.83 : 63,064.47 = 12,460.92 : x
2. Step 2: Convert to fraction form
   42,042.83/63,064.47 = 12,460.92/x
3. Step 3: Cross multiply
   42,042.83x = 63,064.47 × 12,460.92
4. Step 4: Simplify right side
   42,042.83x = 785,841,315.51
5. Step 5: Solve for x
   x = 785,841,315.51/42,042.83
6. Step 6: Final answer
   x = 18,691.45