Finding the Fourth Proportional to 113,024.21, 155,987.21 and 65,277.50

Step by Step Solution

1. Step 1: Write the proportion equation
   113,024.21 : 155,987.21 = 65,277.50 : x
2. Step 2: Convert to fraction form
   113,024.21/155,987.21 = 65,277.50/x
3. Step 3: Cross multiply
   113,024.21x = 155,987.21 × 65,277.50
4. Step 4: Simplify right side
   113,024.21x = 10,182,454,484.03
5. Step 5: Solve for x
   x = 10,182,454,484.03/113,024.21
6. Step 6: Final answer
   x = 90,090.92