Finding the Fourth Proportional to 61,245,800.18, 91,886,636.25 and 18,116,152.09

Step by Step Solution

1. Step 1: Write the proportion equation
   61,245,800.18 : 91,886,636.25 = 18,116,152.09 : x
2. Step 2: Convert to fraction form
   61,245,800.18/91,886,636.25 = 18,116,152.09/x
3. Step 3: Cross multiply
   61,245,800.18x = 91,886,636.25 × 18,116,152.09
4. Step 4: Simplify right side
   61,245,800.18x = 1,664,632,277,343,507.25
5. Step 5: Solve for x
   x = 1,664,632,277,343,507.25/61,245,800.18
6. Step 6: Final answer
   x = 27,179,533.49