Finding the Fourth Proportional to 148,844.30, 205,401.55 and 85,178.02

Step by Step Solution

1. Step 1: Write the proportion equation
   148,844.30 : 205,401.55 = 85,178.02 : x
2. Step 2: Convert to fraction form
   148,844.30/205,401.55 = 85,178.02/x
3. Step 3: Cross multiply
   148,844.30x = 205,401.55 × 85,178.02
4. Step 4: Simplify right side
   148,844.30x = 17,495,697,333.93
5. Step 5: Solve for x
   x = 17,495,697,333.93/148,844.30
6. Step 6: Final answer
   x = 117,543.62