Finding the Fourth Proportional to 78,003.33, 107,684.43 and 54,088.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,003.33 : 107,684.43 = 54,088.50 : x
2. Step 2: Convert to fraction form
   78,003.33/107,684.43 = 54,088.50/x
3. Step 3: Cross multiply
   78,003.33x = 107,684.43 × 54,088.50
4. Step 4: Simplify right side
   78,003.33x = 5,824,489,292.06
5. Step 5: Solve for x
   x = 5,824,489,292.06/78,003.33
6. Step 6: Final answer
   x = 74,669.75