Finding the Fourth Proportional to 30,573.31, 45,848.35 and 12,805.15

Step by Step Solution

1. Step 1: Write the proportion equation
   30,573.31 : 45,848.35 = 12,805.15 : x
2. Step 2: Convert to fraction form
   30,573.31/45,848.35 = 12,805.15/x
3. Step 3: Cross multiply
   30,573.31x = 45,848.35 × 12,805.15
4. Step 4: Simplify right side
   30,573.31x = 587,094,999.00
5. Step 5: Solve for x
   x = 587,094,999.00/30,573.31
6. Step 6: Final answer
   x = 19,202.86