Finding the Fourth Proportional to 42,384.07, 63,574.56 and 12,801.15

Step by Step Solution

1. Step 1: Write the proportion equation
   42,384.07 : 63,574.56 = 12,801.15 : x
2. Step 2: Convert to fraction form
   42,384.07/63,574.56 = 12,801.15/x
3. Step 3: Cross multiply
   42,384.07x = 63,574.56 × 12,801.15
4. Step 4: Simplify right side
   42,384.07x = 813,827,478.74
5. Step 5: Solve for x
   x = 813,827,478.74/42,384.07
6. Step 6: Final answer
   x = 19,201.26