Finding the Fourth Proportional to 340,384.55, 510,522.15 and 103,672.18

Step by Step Solution

1. Step 1: Write the proportion equation
   340,384.55 : 510,522.15 = 103,672.18 : x
2. Step 2: Convert to fraction form
   340,384.55/510,522.15 = 103,672.18/x
3. Step 3: Cross multiply
   340,384.55x = 510,522.15 × 103,672.18
4. Step 4: Simplify right side
   340,384.55x = 52,926,941,676.18
5. Step 5: Solve for x
   x = 52,926,941,676.18/340,384.55
6. Step 6: Final answer
   x = 155,491.61