Finding the Fourth Proportional to 42,475.98, 63,731.52 and 21,404.76

Step by Step Solution

1. Step 1: Write the proportion equation
   42,475.98 : 63,731.52 = 21,404.76 : x
2. Step 2: Convert to fraction form
   42,475.98/63,731.52 = 21,404.76/x
3. Step 3: Cross multiply
   42,475.98x = 63,731.52 × 21,404.76
4. Step 4: Simplify right side
   42,475.98x = 1,364,157,890.04
5. Step 5: Solve for x
   x = 1,364,157,890.04/42,475.98
6. Step 6: Final answer
   x = 32,115.98