Finding the Fourth Proportional to 103,109.62, 142,284.54 and 60,659.95

Step by Step Solution

1. Step 1: Write the proportion equation
   103,109.62 : 142,284.54 = 60,659.95 : x
2. Step 2: Convert to fraction form
   103,109.62/142,284.54 = 60,659.95/x
3. Step 3: Cross multiply
   103,109.62x = 142,284.54 × 60,659.95
4. Step 4: Simplify right side
   103,109.62x = 8,630,973,082.17
5. Step 5: Solve for x
   x = 8,630,973,082.17/103,109.62
6. Step 6: Final answer
   x = 83,706.77