Finding the Fourth Proportional to 299,069.34, 412,779.72 and 171,815.10

Step by Step Solution

1. Step 1: Write the proportion equation
   299,069.34 : 412,779.72 = 171,815.10 : x
2. Step 2: Convert to fraction form
   299,069.34/412,779.72 = 171,815.10/x
3. Step 3: Cross multiply
   299,069.34x = 412,779.72 × 171,815.10
4. Step 4: Simplify right side
   299,069.34x = 70,921,788,869.77
5. Step 5: Solve for x
   x = 70,921,788,869.77/299,069.34
6. Step 6: Final answer
   x = 237,141.62