Finding the Fourth Proportional to 42,487,171.98, 63,730,660.75 and 18,210,357.42

Step by Step Solution

1. Step 1: Write the proportion equation
   42,487,171.98 : 63,730,660.75 = 18,210,357.42 : x
2. Step 2: Convert to fraction form
   42,487,171.98/63,730,660.75 = 18,210,357.42/x
3. Step 3: Cross multiply
   42,487,171.98x = 63,730,660.75 × 18,210,357.42
4. Step 4: Simplify right side
   42,487,171.98x = 1,160,558,110,870,265.50
5. Step 5: Solve for x
   x = 1,160,558,110,870,265.50/42,487,171.98
6. Step 6: Final answer
   x = 27,315,494.46