Finding the Fourth Proportional to 123,678.84, 185,545.48 and 70,395.90

Step by Step Solution

1. Step 1: Write the proportion equation
   123,678.84 : 185,545.48 = 70,395.90 : x
2. Step 2: Convert to fraction form
   123,678.84/185,545.48 = 70,395.90/x
3. Step 3: Cross multiply
   123,678.84x = 185,545.48 × 70,395.90
4. Step 4: Simplify right side
   123,678.84x = 13,061,641,055.53
5. Step 5: Solve for x
   x = 13,061,641,055.53/123,678.84
6. Step 6: Final answer
   x = 105,609.34