Finding the Fourth Proportional to 85,408,012.24, 128,085,522.12 and 30,813,500.56

Step by Step Solution

1. Step 1: Write the proportion equation
   85,408,012.24 : 128,085,522.12 = 30,813,500.56 : x
2. Step 2: Convert to fraction form
   85,408,012.24/128,085,522.12 = 30,813,500.56/x
3. Step 3: Cross multiply
   85,408,012.24x = 128,085,522.12 × 30,813,500.56
4. Step 4: Simplify right side
   85,408,012.24x = 3,946,763,307,572,512.50
5. Step 5: Solve for x
   x = 3,946,763,307,572,512.50/85,408,012.24
6. Step 6: Final answer
   x = 46,210,691.53