Finding the Fourth Proportional to 34,697.72, 47,864.82 and 21,272.12

Step by Step Solution

1. Step 1: Write the proportion equation
   34,697.72 : 47,864.82 = 21,272.12 : x
2. Step 2: Convert to fraction form
   34,697.72/47,864.82 = 21,272.12/x
3. Step 3: Cross multiply
   34,697.72x = 47,864.82 × 21,272.12
4. Step 4: Simplify right side
   34,697.72x = 1,018,186,194.82
5. Step 5: Solve for x
   x = 1,018,186,194.82/34,697.72
6. Step 6: Final answer
   x = 29,344.47