Finding the Fourth Proportional to 137,941, 190,358.78 and 78,325

Step by Step Solution

1. Step 1: Write the proportion equation
   137,941 : 190,358.78 = 78,325 : x
2. Step 2: Convert to fraction form
   137,941/190,358.78 = 78,325/x
3. Step 3: Cross multiply
   137,941x = 190,358.78 × 78,325
4. Step 4: Simplify right side
   137,941x = 14,909,851,443.50
5. Step 5: Solve for x
   x = 14,909,851,443.50/137,941
6. Step 6: Final answer
   x = 108,088.61