Finding the Fourth Proportional to 38,308.12, 52,870.02 and 21,541

Step by Step Solution

1. Step 1: Write the proportion equation
   38,308.12 : 52,870.02 = 21,541 : x
2. Step 2: Convert to fraction form
   38,308.12/52,870.02 = 21,541/x
3. Step 3: Cross multiply
   38,308.12x = 52,870.02 × 21,541
4. Step 4: Simplify right side
   38,308.12x = 1,138,873,100.82
5. Step 5: Solve for x
   x = 1,138,873,100.82/38,308.12
6. Step 6: Final answer
   x = 29,729.29