Finding the Fourth Proportional to 42,243,864.55, 63,387,404.75 and 20,111,018.00

Step by Step Solution

1. Step 1: Write the proportion equation
   42,243,864.55 : 63,387,404.75 = 20,111,018.00 : x
2. Step 2: Convert to fraction form
   42,243,864.55/63,387,404.75 = 20,111,018.00/x
3. Step 3: Cross multiply
   42,243,864.55x = 63,387,404.75 × 20,111,018.00
4. Step 4: Simplify right side
   42,243,864.55x = 1,274,785,237,633,876
5. Step 5: Solve for x
   x = 1,274,785,237,633,876/42,243,864.55
6. Step 6: Final answer
   x = 30,176,813.87