Finding the Fourth Proportional to 37,003,108.57, 55,559,225.67 and 20,640,361.57

Step by Step Solution

1. Step 1: Write the proportion equation
   37,003,108.57 : 55,559,225.67 = 20,640,361.57 : x
2. Step 2: Convert to fraction form
   37,003,108.57/55,559,225.67 = 20,640,361.57/x
3. Step 3: Cross multiply
   37,003,108.57x = 55,559,225.67 × 20,640,361.57
4. Step 4: Simplify right side
   37,003,108.57x = 1,146,762,506,378,025.50
5. Step 5: Solve for x
   x = 1,146,762,506,378,025.50/37,003,108.57
6. Step 6: Final answer
   x = 30,990,977.53