Finding the Fourth Proportional to 42,364,123.30, 63,557,010.60 and 13,610,540.80

Step by Step Solution

1. Step 1: Write the proportion equation
   42,364,123.30 : 63,557,010.60 = 13,610,540.80 : x
2. Step 2: Convert to fraction form
   42,364,123.30/63,557,010.60 = 13,610,540.80/x
3. Step 3: Cross multiply
   42,364,123.30x = 63,557,010.60 × 13,610,540.80
4. Step 4: Simplify right side
   42,364,123.30x = 865,045,285,897,332.50
5. Step 5: Solve for x
   x = 865,045,285,897,332.50/42,364,123.30
6. Step 6: Final answer
   x = 20,419,289.21