Finding the Fourth Proportional to 123,539.42, 170,483.18 and 69,090.98

Step by Step Solution

1. Step 1: Write the proportion equation
   123,539.42 : 170,483.18 = 69,090.98 : x
2. Step 2: Convert to fraction form
   123,539.42/170,483.18 = 69,090.98/x
3. Step 3: Cross multiply
   123,539.42x = 170,483.18 × 69,090.98
4. Step 4: Simplify right side
   123,539.42x = 11,778,849,979.72
5. Step 5: Solve for x
   x = 11,778,849,979.72/123,539.42
6. Step 6: Final answer
   x = 95,344.87