Finding the Fourth Proportional to 111,017.08, 153,204.78 and 60,715

Step by Step Solution

1. Step 1: Write the proportion equation
   111,017.08 : 153,204.78 = 60,715 : x
2. Step 2: Convert to fraction form
   111,017.08/153,204.78 = 60,715/x
3. Step 3: Cross multiply
   111,017.08x = 153,204.78 × 60,715
4. Step 4: Simplify right side
   111,017.08x = 9,301,828,217.70
5. Step 5: Solve for x
   x = 9,301,828,217.70/111,017.08
6. Step 6: Final answer
   x = 83,787.36