Finding the Fourth Proportional to 111,603.39, 154,004.71 and 63,191.41

Step by Step Solution

1. Step 1: Write the proportion equation
   111,603.39 : 154,004.71 = 63,191.41 : x
2. Step 2: Convert to fraction form
   111,603.39/154,004.71 = 63,191.41/x
3. Step 3: Cross multiply
   111,603.39x = 154,004.71 × 63,191.41
4. Step 4: Simplify right side
   111,603.39x = 9,731,774,347.03
5. Step 5: Solve for x
   x = 9,731,774,347.03/111,603.39
6. Step 6: Final answer
   x = 87,199.63