Finding the Fourth Proportional to 78,503.76, 108,334.01 and 42,692.96

Step by Step Solution

1. Step 1: Write the proportion equation
   78,503.76 : 108,334.01 = 42,692.96 : x
2. Step 2: Convert to fraction form
   78,503.76/108,334.01 = 42,692.96/x
3. Step 3: Cross multiply
   78,503.76x = 108,334.01 × 42,692.96
4. Step 4: Simplify right side
   78,503.76x = 4,625,098,800.43
5. Step 5: Solve for x
   x = 4,625,098,800.43/78,503.76
6. Step 6: Final answer
   x = 58,915.63