Finding the Fourth Proportional to 52,886.52, 72,985.68 and 31,661.69

Step by Step Solution

1. Step 1: Write the proportion equation
   52,886.52 : 72,985.68 = 31,661.69 : x
2. Step 2: Convert to fraction form
   52,886.52/72,985.68 = 31,661.69/x
3. Step 3: Cross multiply
   52,886.52x = 72,985.68 × 31,661.69
4. Step 4: Simplify right side
   52,886.52x = 2,310,849,609.67
5. Step 5: Solve for x
   x = 2,310,849,609.67/52,886.52
6. Step 6: Final answer
   x = 43,694.49