Finding the Fourth Proportional to 78,364.93, 108,140.52 and 42,554.02

Step by Step Solution

1. Step 1: Write the proportion equation
   78,364.93 : 108,140.52 = 42,554.02 : x
2. Step 2: Convert to fraction form
   78,364.93/108,140.52 = 42,554.02/x
3. Step 3: Cross multiply
   78,364.93x = 108,140.52 × 42,554.02
4. Step 4: Simplify right side
   78,364.93x = 4,601,813,850.89
5. Step 5: Solve for x
   x = 4,601,813,850.89/78,364.93
6. Step 6: Final answer
   x = 58,722.87