Finding the Fourth Proportional to 345,682.50, 477,041.91 and 186,706.50

Step by Step Solution

1. Step 1: Write the proportion equation
   345,682.50 : 477,041.91 = 186,706.50 : x
2. Step 2: Convert to fraction form
   345,682.50/477,041.91 = 186,706.50/x
3. Step 3: Cross multiply
   345,682.50x = 477,041.91 × 186,706.50
4. Step 4: Simplify right side
   345,682.50x = 89,066,825,369.42
5. Step 5: Solve for x
   x = 89,066,825,369.42/345,682.50
6. Step 6: Final answer
   x = 257,655.00