Finding the Fourth Proportional to 108,323,631.72, 149,447,381.67 and 71,173,920.51

Step by Step Solution

1. Step 1: Write the proportion equation
   108,323,631.72 : 149,447,381.67 = 71,173,920.51 : x
2. Step 2: Convert to fraction form
   108,323,631.72/149,447,381.67 = 71,173,920.51/x
3. Step 3: Cross multiply
   108,323,631.72x = 149,447,381.67 × 71,173,920.51
4. Step 4: Simplify right side
   108,323,631.72x = 10,636,756,063,408,210
5. Step 5: Solve for x
   x = 10,636,756,063,408,210/108,323,631.72
6. Step 6: Final answer
   x = 98,194,234.21