Finding the Fourth Proportional to 162,552.30, 243,796.05 and 78,312.30

Step by Step Solution

1. Step 1: Write the proportion equation
   162,552.30 : 243,796.05 = 78,312.30 : x
2. Step 2: Convert to fraction form
   162,552.30/243,796.05 = 78,312.30/x
3. Step 3: Cross multiply
   162,552.30x = 243,796.05 × 78,312.30
4. Step 4: Simplify right side
   162,552.30x = 19,092,229,406.42
5. Step 5: Solve for x
   x = 19,092,229,406.42/162,552.30
6. Step 6: Final answer
   x = 117,452.84