Finding the Fourth Proportional to 38,499.02, 53,124.89 and 21,501.91

Step by Step Solution

1. Step 1: Write the proportion equation
   38,499.02 : 53,124.89 = 21,501.91 : x
2. Step 2: Convert to fraction form
   38,499.02/53,124.89 = 21,501.91/x
3. Step 3: Cross multiply
   38,499.02x = 53,124.89 × 21,501.91
4. Step 4: Simplify right side
   38,499.02x = 1,142,286,603.54
5. Step 5: Solve for x
   x = 1,142,286,603.54/38,499.02
6. Step 6: Final answer
   x = 29,670.54