Finding the Fourth Proportional to 120,337,064.91, 180,453,033.63 and 42,588,128.30

Step by Step Solution

1. Step 1: Write the proportion equation
   120,337,064.91 : 180,453,033.63 = 42,588,128.30 : x
2. Step 2: Convert to fraction form
   120,337,064.91/180,453,033.63 = 42,588,128.30/x
3. Step 3: Cross multiply
   120,337,064.91x = 180,453,033.63 × 42,588,128.30
4. Step 4: Simplify right side
   120,337,064.91x = 7,685,156,947,456,390
5. Step 5: Solve for x
   x = 7,685,156,947,456,390/120,337,064.91
6. Step 6: Final answer
   x = 63,863,589.77