Finding the Fourth Proportional to 156,695.82, 235,157.86 and 56,864.05

Step by Step Solution

1. Step 1: Write the proportion equation
   156,695.82 : 235,157.86 = 56,864.05 : x
2. Step 2: Convert to fraction form
   156,695.82/235,157.86 = 56,864.05/x
3. Step 3: Cross multiply
   156,695.82x = 235,157.86 × 56,864.05
4. Step 4: Simplify right side
   156,695.82x = 13,372,028,293.57
5. Step 5: Solve for x
   x = 13,372,028,293.57/156,695.82
6. Step 6: Final answer
   x = 85,337.49