Finding the Fourth Proportional to 201,753.59, 278,422.04 and 111,111.35

Step by Step Solution

1. Step 1: Write the proportion equation
   201,753.59 : 278,422.04 = 111,111.35 : x
2. Step 2: Convert to fraction form
   201,753.59/278,422.04 = 111,111.35/x
3. Step 3: Cross multiply
   201,753.59x = 278,422.04 × 111,111.35
4. Step 4: Simplify right side
   201,753.59x = 30,935,847,619.82
5. Step 5: Solve for x
   x = 30,935,847,619.82/201,753.59
6. Step 6: Final answer
   x = 153,334.81