Finding the Fourth Proportional to 111,017.58, 153,205.47 and 60,715.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,017.58 : 153,205.47 = 60,715.50 : x
2. Step 2: Convert to fraction form
   111,017.58/153,205.47 = 60,715.50/x
3. Step 3: Cross multiply
   111,017.58x = 153,205.47 × 60,715.50
4. Step 4: Simplify right side
   111,017.58x = 9,301,946,713.79
5. Step 5: Solve for x
   x = 9,301,946,713.79/111,017.58
6. Step 6: Final answer
   x = 83,788.05