Finding the Fourth Proportional to 38,499.12, 53,128.38 and 22,580.55

Step by Step Solution

1. Step 1: Write the proportion equation
   38,499.12 : 53,128.38 = 22,580.55 : x
2. Step 2: Convert to fraction form
   38,499.12/53,128.38 = 22,580.55/x
3. Step 3: Cross multiply
   38,499.12x = 53,128.38 × 22,580.55
4. Step 4: Simplify right side
   38,499.12x = 1,199,668,041.01
5. Step 5: Solve for x
   x = 1,199,668,041.01/38,499.12
6. Step 6: Final answer
   x = 31,160.92