Finding the Fourth Proportional to 42,533.98, 63,810.52 and 12,954.15

Step by Step Solution

1. Step 1: Write the proportion equation
   42,533.98 : 63,810.52 = 12,954.15 : x
2. Step 2: Convert to fraction form
   42,533.98/63,810.52 = 12,954.15/x
3. Step 3: Cross multiply
   42,533.98x = 63,810.52 × 12,954.15
4. Step 4: Simplify right side
   42,533.98x = 826,611,047.66
5. Step 5: Solve for x
   x = 826,611,047.66/42,533.98
6. Step 6: Final answer
   x = 19,434.13