Finding the Fourth Proportional to 99,503,981.69, 137,315,626.38 and 55,450,013.81

Step by Step Solution

1. Step 1: Write the proportion equation
   99,503,981.69 : 137,315,626.38 = 55,450,013.81 : x
2. Step 2: Convert to fraction form
   99,503,981.69/137,315,626.38 = 55,450,013.81/x
3. Step 3: Cross multiply
   99,503,981.69x = 137,315,626.38 × 55,450,013.81
4. Step 4: Simplify right side
   99,503,981.69x = 7,614,153,378,413,222
5. Step 5: Solve for x
   x = 7,614,153,378,413,222/99,503,981.69
6. Step 6: Final answer
   x = 76,521,092.42