Finding the Fourth Proportional to 101,667.42, 140,301.36 and 56,346.17

Step by Step Solution

1. Step 1: Write the proportion equation
   101,667.42 : 140,301.36 = 56,346.17 : x
2. Step 2: Convert to fraction form
   101,667.42/140,301.36 = 56,346.17/x
3. Step 3: Cross multiply
   101,667.42x = 140,301.36 × 56,346.17
4. Step 4: Simplify right side
   101,667.42x = 7,905,443,580.28
5. Step 5: Solve for x
   x = 7,905,443,580.28/101,667.42
6. Step 6: Final answer
   x = 77,757.89