Finding the Fourth Proportional to 82,048,907.52, 123,018,690.96 and 45,178,159.68

Step by Step Solution

1. Step 1: Write the proportion equation
   82,048,907.52 : 123,018,690.96 = 45,178,159.68 : x
2. Step 2: Convert to fraction form
   82,048,907.52/123,018,690.96 = 45,178,159.68/x
3. Step 3: Cross multiply
   82,048,907.52x = 123,018,690.96 × 45,178,159.68
4. Step 4: Simplify right side
   82,048,907.52x = 5,557,758,063,815,452
5. Step 5: Solve for x
   x = 5,557,758,063,815,452/82,048,907.52
6. Step 6: Final answer
   x = 67,737,136.69