Finding the Fourth Proportional to 38,499.43, 53,125.76 and 21,501.31

Step by Step Solution

1. Step 1: Write the proportion equation
   38,499.43 : 53,125.76 = 21,501.31 : x
2. Step 2: Convert to fraction form
   38,499.43/53,125.76 = 21,501.31/x
3. Step 3: Cross multiply
   38,499.43x = 53,125.76 × 21,501.31
4. Step 4: Simplify right side
   38,499.43x = 1,142,273,434.75
5. Step 5: Solve for x
   x = 1,142,273,434.75/38,499.43
6. Step 6: Final answer
   x = 29,669.88