Finding the Fourth Proportional to 42,533.85, 63,810.27 and 12,953.98

Step by Step Solution

1. Step 1: Write the proportion equation
   42,533.85 : 63,810.27 = 12,953.98 : x
2. Step 2: Convert to fraction form
   42,533.85/63,810.27 = 12,953.98/x
3. Step 3: Cross multiply
   42,533.85x = 63,810.27 × 12,953.98
4. Step 4: Simplify right side
   42,533.85x = 826,596,961.37
5. Step 5: Solve for x
   x = 826,596,961.37/42,533.85
6. Step 6: Final answer
   x = 19,433.86