Finding the Fourth Proportional to 57,004,418.60, 78,663,990.18 and 30,898,375.94

Step by Step Solution

1. Step 1: Write the proportion equation
   57,004,418.60 : 78,663,990.18 = 30,898,375.94 : x
2. Step 2: Convert to fraction form
   57,004,418.60/78,663,990.18 = 30,898,375.94/x
3. Step 3: Cross multiply
   57,004,418.60x = 78,663,990.18 × 30,898,375.94
4. Step 4: Simplify right side
   57,004,418.60x = 2,430,589,541,522,108.50
5. Step 5: Solve for x
   x = 2,430,589,541,522,108.50/57,004,418.60
6. Step 6: Final answer
   x = 42,638,616.47