Finding the Fourth Proportional to 78,516.84, 108,354.61 and 42,707.45

Step by Step Solution

1. Step 1: Write the proportion equation
   78,516.84 : 108,354.61 = 42,707.45 : x
2. Step 2: Convert to fraction form
   78,516.84/108,354.61 = 42,707.45/x
3. Step 3: Cross multiply
   78,516.84x = 108,354.61 × 42,707.45
4. Step 4: Simplify right side
   78,516.84x = 4,627,549,413.12
5. Step 5: Solve for x
   x = 4,627,549,413.12/78,516.84
6. Step 6: Final answer
   x = 58,937.03