Finding the Fourth Proportional to 123,965,574.56, 170,683,087.80 and 105,341,432.48

Step by Step Solution

1. Step 1: Write the proportion equation
   123,965,574.56 : 170,683,087.80 = 105,341,432.48 : x
2. Step 2: Convert to fraction form
   123,965,574.56/170,683,087.80 = 105,341,432.48/x
3. Step 3: Cross multiply
   123,965,574.56x = 170,683,087.80 × 105,341,432.48
4. Step 4: Simplify right side
   123,965,574.56x = 17,980,000,968,961,614
5. Step 5: Solve for x
   x = 17,980,000,968,961,614/123,965,574.56
6. Step 6: Final answer
   x = 145,040,274.55