Finding the Fourth Proportional to 42,975,942.72, 64,486,308.96 and 19,035,816

Step by Step Solution

1. Step 1: Write the proportion equation
   42,975,942.72 : 64,486,308.96 = 19,035,816 : x
2. Step 2: Convert to fraction form
   42,975,942.72/64,486,308.96 = 19,035,816/x
3. Step 3: Cross multiply
   42,975,942.72x = 64,486,308.96 × 19,035,816
4. Step 4: Simplify right side
   42,975,942.72x = 1,227,549,511,881,711.50
5. Step 5: Solve for x
   x = 1,227,549,511,881,711.50/42,975,942.72
6. Step 6: Final answer
   x = 28,563,643.62