Finding the Fourth Proportional to 111,440.61, 153,787.82 and 63,720.27

Step by Step Solution

1. Step 1: Write the proportion equation
   111,440.61 : 153,787.82 = 63,720.27 : x
2. Step 2: Convert to fraction form
   111,440.61/153,787.82 = 63,720.27/x
3. Step 3: Cross multiply
   111,440.61x = 153,787.82 × 63,720.27
4. Step 4: Simplify right side
   111,440.61x = 9,799,401,094.51
5. Step 5: Solve for x
   x = 9,799,401,094.51/111,440.61
6. Step 6: Final answer
   x = 87,933.84