Finding the Fourth Proportional to 103,090.02, 142,264.72 and 67,258.86

Step by Step Solution

1. Step 1: Write the proportion equation
   103,090.02 : 142,264.72 = 67,258.86 : x
2. Step 2: Convert to fraction form
   103,090.02/142,264.72 = 67,258.86/x
3. Step 3: Cross multiply
   103,090.02x = 142,264.72 × 67,258.86
4. Step 4: Simplify right side
   103,090.02x = 9,568,562,885.42
5. Step 5: Solve for x
   x = 9,568,562,885.42/103,090.02
6. Step 6: Final answer
   x = 92,817.55