Finding the Fourth Proportional to 342,225.83, 513,426.23 and 142,479.83

Step by Step Solution

1. Step 1: Write the proportion equation
   342,225.83 : 513,426.23 = 142,479.83 : x
2. Step 2: Convert to fraction form
   342,225.83/513,426.23 = 142,479.83/x
3. Step 3: Cross multiply
   342,225.83x = 513,426.23 × 142,479.83
4. Step 4: Simplify right side
   342,225.83x = 73,152,881,967.94
5. Step 5: Solve for x
   x = 73,152,881,967.94/342,225.83
6. Step 6: Final answer
   x = 213,756.17