Finding the Fourth Proportional to 139,523,025.22, 209,143,850.34 and 87,744,632.34

Step by Step Solution

1. Step 1: Write the proportion equation
   139,523,025.22 : 209,143,850.34 = 87,744,632.34 : x
2. Step 2: Convert to fraction form
   139,523,025.22/209,143,850.34 = 87,744,632.34/x
3. Step 3: Cross multiply
   139,523,025.22x = 209,143,850.34 × 87,744,632.34
4. Step 4: Simplify right side
   139,523,025.22x = 18,351,250,254,255,284
5. Step 5: Solve for x
   x = 18,351,250,254,255,284/139,523,025.22
6. Step 6: Final answer
   x = 131,528,471.56