Finding the Fourth Proportional to 91,816, 137,782.26 and 39,225.88

Step by Step Solution

1. Step 1: Write the proportion equation
   91,816 : 137,782.26 = 39,225.88 : x
2. Step 2: Convert to fraction form
   91,816/137,782.26 = 39,225.88/x
3. Step 3: Cross multiply
   91,816x = 137,782.26 × 39,225.88
4. Step 4: Simplify right side
   91,816x = 5,404,630,396.89
5. Step 5: Solve for x
   x = 5,404,630,396.89/91,816
6. Step 6: Final answer
   x = 58,863.71