Finding the Fourth Proportional to 340,216.55, 510,401.00 and 103,577.69

Step by Step Solution

1. Step 1: Write the proportion equation
   340,216.55 : 510,401.00 = 103,577.69 : x
2. Step 2: Convert to fraction form
   340,216.55/510,401.00 = 103,577.69/x
3. Step 3: Cross multiply
   340,216.55x = 510,401.00 × 103,577.69
4. Step 4: Simplify right side
   340,216.55x = 52,866,154,635.01
5. Step 5: Solve for x
   x = 52,866,154,635.01/340,216.55
6. Step 6: Final answer
   x = 155,389.72