Finding the Fourth Proportional to 42,703,984.61, 64,042,728.82 and 15,406,728.83

Step by Step Solution

1. Step 1: Write the proportion equation
   42,703,984.61 : 64,042,728.82 = 15,406,728.83 : x
2. Step 2: Convert to fraction form
   42,703,984.61/64,042,728.82 = 15,406,728.83/x
3. Step 3: Cross multiply
   42,703,984.61x = 64,042,728.82 × 15,406,728.83
4. Step 4: Simplify right side
   42,703,984.61x = 986,688,956,431,058.38
5. Step 5: Solve for x
   x = 986,688,956,431,058.38/42,703,984.61
6. Step 6: Final answer
   x = 23,105,313.60