Finding the Fourth Proportional to 103,429.30, 142,751.01 and 60,985.30

Step by Step Solution

1. Step 1: Write the proportion equation
   103,429.30 : 142,751.01 = 60,985.30 : x
2. Step 2: Convert to fraction form
   103,429.30/142,751.01 = 60,985.30/x
3. Step 3: Cross multiply
   103,429.30x = 142,751.01 × 60,985.30
4. Step 4: Simplify right side
   103,429.30x = 8,705,713,170.15
5. Step 5: Solve for x
   x = 8,705,713,170.15/103,429.30
6. Step 6: Final answer
   x = 84,170.67