Finding the Fourth Proportional to 42,062.30, 63,083.71 and 12,473

Step by Step Solution

1. Step 1: Write the proportion equation
   42,062.30 : 63,083.71 = 12,473 : x
2. Step 2: Convert to fraction form
   42,062.30/63,083.71 = 12,473/x
3. Step 3: Cross multiply
   42,062.30x = 63,083.71 × 12,473
4. Step 4: Simplify right side
   42,062.30x = 786,843,114.83
5. Step 5: Solve for x
   x = 786,843,114.83/42,062.30
6. Step 6: Final answer
   x = 18,706.61