Finding the Fourth Proportional to 260,059.98, 390,164.69 and 108,227.50

Step by Step Solution

1. Step 1: Write the proportion equation
   260,059.98 : 390,164.69 = 108,227.50 : x
2. Step 2: Convert to fraction form
   260,059.98/390,164.69 = 108,227.50/x
3. Step 3: Cross multiply
   260,059.98x = 390,164.69 × 108,227.50
4. Step 4: Simplify right side
   260,059.98x = 42,226,548,445.84
5. Step 5: Solve for x
   x = 42,226,548,445.84/260,059.98
6. Step 6: Final answer
   x = 162,372.35