Finding the Fourth Proportional to 345,680.60, 518,681.27 and 146,047.59

Step by Step Solution

1. Step 1: Write the proportion equation
   345,680.60 : 518,681.27 = 146,047.59 : x
2. Step 2: Convert to fraction form
   345,680.60/518,681.27 = 146,047.59/x
3. Step 3: Cross multiply
   345,680.60x = 518,681.27 × 146,047.59
4. Step 4: Simplify right side
   345,680.60x = 75,752,149,826.76
5. Step 5: Solve for x
   x = 75,752,149,826.76/345,680.60
6. Step 6: Final answer
   x = 219,139.14