Finding the Fourth Proportional to 39,054.02, 53,894.16 and 21,148.83

Step by Step Solution

1. Step 1: Write the proportion equation
   39,054.02 : 53,894.16 = 21,148.83 : x
2. Step 2: Convert to fraction form
   39,054.02/53,894.16 = 21,148.83/x
3. Step 3: Cross multiply
   39,054.02x = 53,894.16 × 21,148.83
4. Step 4: Simplify right side
   39,054.02x = 1,139,798,427.83
5. Step 5: Solve for x
   x = 1,139,798,427.83/39,054.02
6. Step 6: Final answer
   x = 29,185.18