Finding the Fourth Proportional to 42,361,328.34, 63,497,755.71 and 20,766,028.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,361,328.34 : 63,497,755.71 = 20,766,028.50 : x
2. Step 2: Convert to fraction form
   42,361,328.34/63,497,755.71 = 20,766,028.50/x
3. Step 3: Cross multiply
   42,361,328.34x = 63,497,755.71 × 20,766,028.50
4. Step 4: Simplify right side
   42,361,328.34x = 1,318,596,204,759,897.75
5. Step 5: Solve for x
   x = 1,318,596,204,759,897.75/42,361,328.34
6. Step 6: Final answer
   x = 31,127,357.34