Finding the Fourth Proportional to 162,535.59, 243,851.69 and 78,271.40

Step by Step Solution

1. Step 1: Write the proportion equation
   162,535.59 : 243,851.69 = 78,271.40 : x
2. Step 2: Convert to fraction form
   162,535.59/243,851.69 = 78,271.40/x
3. Step 3: Cross multiply
   162,535.59x = 243,851.69 × 78,271.40
4. Step 4: Simplify right side
   162,535.59x = 19,086,611,558.05
5. Step 5: Solve for x
   x = 19,086,611,558.05/162,535.59
6. Step 6: Final answer
   x = 117,430.35