Finding the Fourth Proportional to 111,871.07, 154,388.96 and 64,131.59

Step by Step Solution

1. Step 1: Write the proportion equation
   111,871.07 : 154,388.96 = 64,131.59 : x
2. Step 2: Convert to fraction form
   111,871.07/154,388.96 = 64,131.59/x
3. Step 3: Cross multiply
   111,871.07x = 154,388.96 × 64,131.59
4. Step 4: Simplify right side
   111,871.07x = 9,901,209,483.25
5. Step 5: Solve for x
   x = 9,901,209,483.25/111,871.07
6. Step 6: Final answer
   x = 88,505.54