Finding the Fourth Proportional to 261,870.98, 392,074.32 and 141,496.62

Step by Step Solution

1. Step 1: Write the proportion equation
   261,870.98 : 392,074.32 = 141,496.62 : x
2. Step 2: Convert to fraction form
   261,870.98/392,074.32 = 141,496.62/x
3. Step 3: Cross multiply
   261,870.98x = 392,074.32 × 141,496.62
4. Step 4: Simplify right side
   261,870.98x = 55,477,191,068.80
5. Step 5: Solve for x
   x = 55,477,191,068.80/261,870.98
6. Step 6: Final answer
   x = 211,849.33