Finding the Fourth Proportional to 78,697.89, 108,599.94 and 42,887.14

Step by Step Solution

1. Step 1: Write the proportion equation
   78,697.89 : 108,599.94 = 42,887.14 : x
2. Step 2: Convert to fraction form
   78,697.89/108,599.94 = 42,887.14/x
3. Step 3: Cross multiply
   78,697.89x = 108,599.94 × 42,887.14
4. Step 4: Simplify right side
   78,697.89x = 4,657,540,830.77
5. Step 5: Solve for x
   x = 4,657,540,830.77/78,697.89
6. Step 6: Final answer
   x = 59,182.54