Finding the Fourth Proportional to 31,897.72, 47,830.15 and 14,357.98

Step by Step Solution

1. Step 1: Write the proportion equation
   31,897.72 : 47,830.15 = 14,357.98 : x
2. Step 2: Convert to fraction form
   31,897.72/47,830.15 = 14,357.98/x
3. Step 3: Cross multiply
   31,897.72x = 47,830.15 × 14,357.98
4. Step 4: Simplify right side
   31,897.72x = 686,744,337.10
5. Step 5: Solve for x
   x = 686,744,337.10/31,897.72
6. Step 6: Final answer
   x = 21,529.57