Finding the Fourth Proportional to 52,307.19, 72,194.31 and 31,082.34

Step by Step Solution

1. Step 1: Write the proportion equation
   52,307.19 : 72,194.31 = 31,082.34 : x
2. Step 2: Convert to fraction form
   52,307.19/72,194.31 = 31,082.34/x
3. Step 3: Cross multiply
   52,307.19x = 72,194.31 × 31,082.34
4. Step 4: Simplify right side
   52,307.19x = 2,243,968,089.49
5. Step 5: Solve for x
   x = 2,243,968,089.49/52,307.19
6. Step 6: Final answer
   x = 42,899.80