Finding the Fourth Proportional to 52,853.32, 72,938.10 and 30,493

Step by Step Solution

1. Step 1: Write the proportion equation
   52,853.32 : 72,938.10 = 30,493 : x
2. Step 2: Convert to fraction form
   52,853.32/72,938.10 = 30,493/x
3. Step 3: Cross multiply
   52,853.32x = 72,938.10 × 30,493
4. Step 4: Simplify right side
   52,853.32x = 2,224,101,483.30
5. Step 5: Solve for x
   x = 2,224,101,483.30/52,853.32
6. Step 6: Final answer
   x = 42,080.64