Finding the Fourth Proportional to 123,931.35, 185,909.18 and 39,670.29

Step by Step Solution

1. Step 1: Write the proportion equation
   123,931.35 : 185,909.18 = 39,670.29 : x
2. Step 2: Convert to fraction form
   123,931.35/185,909.18 = 39,670.29/x
3. Step 3: Cross multiply
   123,931.35x = 185,909.18 × 39,670.29
4. Step 4: Simplify right side
   123,931.35x = 7,375,070,885.91
5. Step 5: Solve for x
   x = 7,375,070,885.91/123,931.35
6. Step 6: Final answer
   x = 59,509.32