Finding the Fourth Proportional to 9,519,858.82, 13,137,633.42 and 5,169,128.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,519,858.82 : 13,137,633.42 = 5,169,128.50 : x
2. Step 2: Convert to fraction form
   9,519,858.82/13,137,633.42 = 5,169,128.50/x
3. Step 3: Cross multiply
   9,519,858.82x = 13,137,633.42 × 5,169,128.50
4. Step 4: Simplify right side
   9,519,858.82x = 67,910,115,333,874.47
5. Step 5: Solve for x
   x = 67,910,115,333,874.47/9,519,858.82
6. Step 6: Final answer
   x = 7,133,521.27