Finding the Fourth Proportional to 13,301,476.14, 18,354,477.65 and 7,499,911.89

Step by Step Solution

1. Step 1: Write the proportion equation
   13,301,476.14 : 18,354,477.65 = 7,499,911.89 : x
2. Step 2: Convert to fraction form
   13,301,476.14/18,354,477.65 = 7,499,911.89/x
3. Step 3: Cross multiply
   13,301,476.14x = 18,354,477.65 × 7,499,911.89
4. Step 4: Simplify right side
   13,301,476.14x = 137,656,965,124,474.69
5. Step 5: Solve for x
   x = 137,656,965,124,474.69/13,301,476.14
6. Step 6: Final answer
   x = 10,348,999.14