Finding the Fourth Proportional to 103,216.30, 142,404.84 and 60,186.05

Step by Step Solution

1. Step 1: Write the proportion equation
   103,216.30 : 142,404.84 = 60,186.05 : x
2. Step 2: Convert to fraction form
   103,216.30/142,404.84 = 60,186.05/x
3. Step 3: Cross multiply
   103,216.30x = 142,404.84 × 60,186.05
4. Step 4: Simplify right side
   103,216.30x = 8,570,784,820.48
5. Step 5: Solve for x
   x = 8,570,784,820.48/103,216.30
6. Step 6: Final answer
   x = 83,037.13