Finding the Fourth Proportional to 109,402.24, 150,971.52 and 69,137.60

Step by Step Solution

1. Step 1: Write the proportion equation
   109,402.24 : 150,971.52 = 69,137.60 : x
2. Step 2: Convert to fraction form
   109,402.24/150,971.52 = 69,137.60/x
3. Step 3: Cross multiply
   109,402.24x = 150,971.52 × 69,137.60
4. Step 4: Simplify right side
   109,402.24x = 10,437,808,561.15
5. Step 5: Solve for x
   x = 10,437,808,561.15/109,402.24
6. Step 6: Final answer
   x = 95,407.63