Finding the Fourth Proportional to 78,335.90, 108,103.20 and 42,525.62

Step by Step Solution

1. Step 1: Write the proportion equation
   78,335.90 : 108,103.20 = 42,525.62 : x
2. Step 2: Convert to fraction form
   78,335.90/108,103.20 = 42,525.62/x
3. Step 3: Cross multiply
   78,335.90x = 108,103.20 × 42,525.62
4. Step 4: Simplify right side
   78,335.90x = 4,597,155,603.98
5. Step 5: Solve for x
   x = 4,597,155,603.98/78,335.90
6. Step 6: Final answer
   x = 58,685.17