Finding the Fourth Proportional to 101,693.53, 140,327.72 and 56,369.32

Step by Step Solution

1. Step 1: Write the proportion equation
   101,693.53 : 140,327.72 = 56,369.32 : x
2. Step 2: Convert to fraction form
   101,693.53/140,327.72 = 56,369.32/x
3. Step 3: Cross multiply
   101,693.53x = 140,327.72 × 56,369.32
4. Step 4: Simplify right side
   101,693.53x = 7,910,177,573.73
5. Step 5: Solve for x
   x = 7,910,177,573.73/101,693.53
6. Step 6: Final answer
   x = 77,784.48