Finding the Fourth Proportional to 78,133.67, 107,824.74 and 42,323.57

Step by Step Solution

1. Step 1: Write the proportion equation
   78,133.67 : 107,824.74 = 42,323.57 : x
2. Step 2: Convert to fraction form
   78,133.67/107,824.74 = 42,323.57/x
3. Step 3: Cross multiply
   78,133.67x = 107,824.74 × 42,323.57
4. Step 4: Simplify right side
   78,133.67x = 4,563,527,931.12
5. Step 5: Solve for x
   x = 4,563,527,931.12/78,133.67
6. Step 6: Final answer
   x = 58,406.68