Finding the Fourth Proportional to 156,308.43, 234,549.52 and 76,347.31

Step by Step Solution

1. Step 1: Write the proportion equation
   156,308.43 : 234,549.52 = 76,347.31 : x
2. Step 2: Convert to fraction form
   156,308.43/234,549.52 = 76,347.31/x
3. Step 3: Cross multiply
   156,308.43x = 234,549.52 × 76,347.31
4. Step 4: Simplify right side
   156,308.43x = 17,907,225,005.78
5. Step 5: Solve for x
   x = 17,907,225,005.78/156,308.43
6. Step 6: Final answer
   x = 114,563.40