Finding the Fourth Proportional to 42,902,013.90, 64,353,020.85 and 30,745,793.10

Step by Step Solution

1. Step 1: Write the proportion equation
   42,902,013.90 : 64,353,020.85 = 30,745,793.10 : x
2. Step 2: Convert to fraction form
   42,902,013.90/64,353,020.85 = 30,745,793.10/x
3. Step 3: Cross multiply
   42,902,013.90x = 64,353,020.85 × 30,745,793.10
4. Step 4: Simplify right side
   42,902,013.90x = 1,978,584,664,414,086.25
5. Step 5: Solve for x
   x = 1,978,584,664,414,086.25/42,902,013.90
6. Step 6: Final answer
   x = 46,118,689.65