Finding the Fourth Proportional to 33,435,981.62, 46,146,698.16 and 20,390,807.86

Step by Step Solution

1. Step 1: Write the proportion equation
   33,435,981.62 : 46,146,698.16 = 20,390,807.86 : x
2. Step 2: Convert to fraction form
   33,435,981.62/46,146,698.16 = 20,390,807.86/x
3. Step 3: Cross multiply
   33,435,981.62x = 46,146,698.16 × 20,390,807.86
4. Step 4: Simplify right side
   33,435,981.62x = 940,968,455,383,330.50
5. Step 5: Solve for x
   x = 940,968,455,383,330.50/33,435,981.62
6. Step 6: Final answer
   x = 28,142,390.61