Finding the Fourth Proportional to 9,509,903.51, 13,123,666.85 and 5,435,609.99

Step by Step Solution

1. Step 1: Write the proportion equation
   9,509,903.51 : 13,123,666.85 = 5,435,609.99 : x
2. Step 2: Convert to fraction form
   9,509,903.51/13,123,666.85 = 5,435,609.99/x
3. Step 3: Cross multiply
   9,509,903.51x = 13,123,666.85 × 5,435,609.99
4. Step 4: Simplify right side
   9,509,903.51x = 71,335,134,542,495.45
5. Step 5: Solve for x
   x = 71,335,134,542,495.45/9,509,903.51
6. Step 6: Final answer
   x = 7,501,141.78