Finding the Fourth Proportional to 61,245,788.53, 91,886,618.76 and 18,116,140.43

Step by Step Solution

1. Step 1: Write the proportion equation
   61,245,788.53 : 91,886,618.76 = 18,116,140.43 : x
2. Step 2: Convert to fraction form
   61,245,788.53/91,886,618.76 = 18,116,140.43/x
3. Step 3: Cross multiply
   61,245,788.53x = 91,886,618.76 × 18,116,140.43
4. Step 4: Simplify right side
   61,245,788.53x = 1,664,630,889,094,032.50
5. Step 5: Solve for x
   x = 1,664,630,889,094,032.50/61,245,788.53
6. Step 6: Final answer
   x = 27,179,516.00