Finding the Fourth Proportional to 156,933.56, 235,085.16 and 72,575.48

Step by Step Solution

1. Step 1: Write the proportion equation
   156,933.56 : 235,085.16 = 72,575.48 : x
2. Step 2: Convert to fraction form
   156,933.56/235,085.16 = 72,575.48/x
3. Step 3: Cross multiply
   156,933.56x = 235,085.16 × 72,575.48
4. Step 4: Simplify right side
   156,933.56x = 17,061,418,327.88
5. Step 5: Solve for x
   x = 17,061,418,327.88/156,933.56
6. Step 6: Final answer
   x = 108,717.46