Finding the Fourth Proportional to 149,111.92, 223,722.78 and 69,188.14

Step by Step Solution

1. Step 1: Write the proportion equation
   149,111.92 : 223,722.78 = 69,188.14 : x
2. Step 2: Convert to fraction form
   149,111.92/223,722.78 = 69,188.14/x
3. Step 3: Cross multiply
   149,111.92x = 223,722.78 × 69,188.14
4. Step 4: Simplify right side
   149,111.92x = 15,478,963,023.83
5. Step 5: Solve for x
   x = 15,478,963,023.83/149,111.92
6. Step 6: Final answer
   x = 103,807.68