Finding the Fourth Proportional to 82,315, 113,620.62 and 52,507

Step by Step Solution

1. Step 1: Write the proportion equation
   82,315 : 113,620.62 = 52,507 : x
2. Step 2: Convert to fraction form
   82,315/113,620.62 = 52,507/x
3. Step 3: Cross multiply
   82,315x = 113,620.62 × 52,507
4. Step 4: Simplify right side
   82,315x = 5,965,877,894.34
5. Step 5: Solve for x
   x = 5,965,877,894.34/82,315
6. Step 6: Final answer
   x = 72,476.19