Finding the Fourth Proportional to 52,307.42, 72,194.72 and 31,082.58

Step by Step Solution

1. Step 1: Write the proportion equation
   52,307.42 : 72,194.72 = 31,082.58 : x
2. Step 2: Convert to fraction form
   52,307.42/72,194.72 = 31,082.58/x
3. Step 3: Cross multiply
   52,307.42x = 72,194.72 × 31,082.58
4. Step 4: Simplify right side
   52,307.42x = 2,243,998,159.98
5. Step 5: Solve for x
   x = 2,243,998,159.98/52,307.42
6. Step 6: Final answer
   x = 42,900.19