Finding the Fourth Proportional to 28,054.72, 42,090.24 and 10,525.92

Step by Step Solution

1. Step 1: Write the proportion equation
   28,054.72 : 42,090.24 = 10,525.92 : x
2. Step 2: Convert to fraction form
   28,054.72/42,090.24 = 10,525.92/x
3. Step 3: Cross multiply
   28,054.72x = 42,090.24 × 10,525.92
4. Step 4: Simplify right side
   28,054.72x = 443,038,499.02
5. Step 5: Solve for x
   x = 443,038,499.02/28,054.72
6. Step 6: Final answer
   x = 15,791.94