Finding the Fourth Proportional to 220,196,581.39, 303,917,518.82 and 139,676,492.01

Step by Step Solution

1. Step 1: Write the proportion equation
   220,196,581.39 : 303,917,518.82 = 139,676,492.01 : x
2. Step 2: Convert to fraction form
   220,196,581.39/303,917,518.82 = 139,676,492.01/x
3. Step 3: Cross multiply
   220,196,581.39x = 303,917,518.82 × 139,676,492.01
4. Step 4: Simplify right side
   220,196,581.39x = 42,450,132,890,649,632
5. Step 5: Solve for x
   x = 42,450,132,890,649,632/220,196,581.39
6. Step 6: Final answer
   x = 192,782,888.01