Finding the Fourth Proportional to 52,305.42, 72,191.98 and 31,080.58

Step by Step Solution

1. Step 1: Write the proportion equation
   52,305.42 : 72,191.98 = 31,080.58 : x
2. Step 2: Convert to fraction form
   52,305.42/72,191.98 = 31,080.58/x
3. Step 3: Cross multiply
   52,305.42x = 72,191.98 × 31,080.58
4. Step 4: Simplify right side
   52,305.42x = 2,243,768,609.75
5. Step 5: Solve for x
   x = 2,243,768,609.75/52,305.42
6. Step 6: Final answer
   x = 42,897.44