Finding the Fourth Proportional to 103,167.53, 142,430.18 and 78,923.82

Step by Step Solution

1. Step 1: Write the proportion equation
   103,167.53 : 142,430.18 = 78,923.82 : x
2. Step 2: Convert to fraction form
   103,167.53/142,430.18 = 78,923.82/x
3. Step 3: Cross multiply
   103,167.53x = 142,430.18 × 78,923.82
4. Step 4: Simplify right side
   103,167.53x = 11,241,133,494.27
5. Step 5: Solve for x
   x = 11,241,133,494.27/103,167.53
6. Step 6: Final answer
   x = 108,960.00