Finding the Fourth Proportional to 52,401.19, 72,302.43 and 31,176.31

Step by Step Solution

1. Step 1: Write the proportion equation
   52,401.19 : 72,302.43 = 31,176.31 : x
2. Step 2: Convert to fraction form
   52,401.19/72,302.43 = 31,176.31/x
3. Step 3: Cross multiply
   52,401.19x = 72,302.43 × 31,176.31
4. Step 4: Simplify right side
   52,401.19x = 2,254,122,971.43
5. Step 5: Solve for x
   x = 2,254,122,971.43/52,401.19
6. Step 6: Final answer
   x = 43,016.64