Finding the Fourth Proportional to 42,901,842.17, 64,266,601.03 and 19,840,452.05

Step by Step Solution

1. Step 1: Write the proportion equation
   42,901,842.17 : 64,266,601.03 = 19,840,452.05 : x
2. Step 2: Convert to fraction form
   42,901,842.17/64,266,601.03 = 19,840,452.05/x
3. Step 3: Cross multiply
   42,901,842.17x = 64,266,601.03 × 19,840,452.05
4. Step 4: Simplify right side
   42,901,842.17x = 1,275,078,416,152,195.75
5. Step 5: Solve for x
   x = 1,275,078,416,152,195.75/42,901,842.17
6. Step 6: Final answer
   x = 29,720,831.36