Finding the Fourth Proportional to 42,901,482.48, 64,266,061.32 and 19,840,092.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,901,482.48 : 64,266,061.32 = 19,840,092.72 : x
2. Step 2: Convert to fraction form
   42,901,482.48/64,266,061.32 = 19,840,092.72/x
3. Step 3: Cross multiply
   42,901,482.48x = 64,266,061.32 × 19,840,092.72
4. Step 4: Simplify right side
   42,901,482.48x = 1,275,044,615,338,005.50
5. Step 5: Solve for x
   x = 1,275,044,615,338,005.50/42,901,482.48
6. Step 6: Final answer
   x = 29,720,292.67