Finding the Fourth Proportional to 52,161,641.69, 78,239,937.45 and 19,811,019.49

Step by Step Solution

1. Step 1: Write the proportion equation
   52,161,641.69 : 78,239,937.45 = 19,811,019.49 : x
2. Step 2: Convert to fraction form
   52,161,641.69/78,239,937.45 = 19,811,019.49/x
3. Step 3: Cross multiply
   52,161,641.69x = 78,239,937.45 × 19,811,019.49
4. Step 4: Simplify right side
   52,161,641.69x = 1,550,012,925,597,022.50
5. Step 5: Solve for x
   x = 1,550,012,925,597,022.50/52,161,641.69
6. Step 6: Final answer
   x = 29,715,570.21