Finding the Fourth Proportional to 42,014.64, 63,060.84 and 21,252.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,014.64 : 63,060.84 = 21,252.72 : x
2. Step 2: Convert to fraction form
   42,014.64/63,060.84 = 21,252.72/x
3. Step 3: Cross multiply
   42,014.64x = 63,060.84 × 21,252.72
4. Step 4: Simplify right side
   42,014.64x = 1,340,214,375.48
5. Step 5: Solve for x
   x = 1,340,214,375.48/42,014.64
6. Step 6: Final answer
   x = 31,898.75