Finding the Fourth Proportional to 52,196.96, 72,031.03 and 30,689.13

Step by Step Solution

1. Step 1: Write the proportion equation
   52,196.96 : 72,031.03 = 30,689.13 : x
2. Step 2: Convert to fraction form
   52,196.96/72,031.03 = 30,689.13/x
3. Step 3: Cross multiply
   52,196.96x = 72,031.03 × 30,689.13
4. Step 4: Simplify right side
   52,196.96x = 2,210,569,518.24
5. Step 5: Solve for x
   x = 2,210,569,518.24/52,196.96
6. Step 6: Final answer
   x = 42,350.54