Finding the Fourth Proportional to 61,245,790.96, 91,886,622.42 and 18,116,142.88

Step by Step Solution

1. Step 1: Write the proportion equation
   61,245,790.96 : 91,886,622.42 = 18,116,142.88 : x
2. Step 2: Convert to fraction form
   61,245,790.96/91,886,622.42 = 18,116,142.88/x
3. Step 3: Cross multiply
   61,245,790.96x = 91,886,622.42 × 18,116,142.88
4. Step 4: Simplify right side
   61,245,790.96x = 1,664,631,180,061,898.25
5. Step 5: Solve for x
   x = 1,664,631,180,061,898.25/61,245,790.96
6. Step 6: Final answer
   x = 27,179,519.67