Finding the Fourth Proportional to 52,855.96, 72,929.82 and 30,487

Step by Step Solution

1. Step 1: Write the proportion equation
   52,855.96 : 72,929.82 = 30,487 : x
2. Step 2: Convert to fraction form
   52,855.96/72,929.82 = 30,487/x
3. Step 3: Cross multiply
   52,855.96x = 72,929.82 × 30,487
4. Step 4: Simplify right side
   52,855.96x = 2,223,411,422.34
5. Step 5: Solve for x
   x = 2,223,411,422.34/52,855.96
6. Step 6: Final answer
   x = 42,065.48