Finding the Fourth Proportional to 31,726.08, 47,554.56 and 21,312

Step by Step Solution

1. Step 1: Write the proportion equation
   31,726.08 : 47,554.56 = 21,312 : x
2. Step 2: Convert to fraction form
   31,726.08/47,554.56 = 21,312/x
3. Step 3: Cross multiply
   31,726.08x = 47,554.56 × 21,312
4. Step 4: Simplify right side
   31,726.08x = 1,013,482,782.72
5. Step 5: Solve for x
   x = 1,013,482,782.72/31,726.08
6. Step 6: Final answer
   x = 31,944.78