Finding the Fourth Proportional to 131,378.25, 181,302.71 and 71,762.25

Step by Step Solution

1. Step 1: Write the proportion equation
   131,378.25 : 181,302.71 = 71,762.25 : x
2. Step 2: Convert to fraction form
   131,378.25/181,302.71 = 71,762.25/x
3. Step 3: Cross multiply
   131,378.25x = 181,302.71 × 71,762.25
4. Step 4: Simplify right side
   131,378.25x = 13,010,690,041.89
5. Step 5: Solve for x
   x = 13,010,690,041.89/131,378.25
6. Step 6: Final answer
   x = 99,032.30