Finding the Fourth Proportional to 119,612,310.16, 165,065,051.28 and 64,608,166.56

Step by Step Solution

1. Step 1: Write the proportion equation
   119,612,310.16 : 165,065,051.28 = 64,608,166.56 : x
2. Step 2: Convert to fraction form
   119,612,310.16/165,065,051.28 = 64,608,166.56/x
3. Step 3: Cross multiply
   119,612,310.16x = 165,065,051.28 × 64,608,166.56
4. Step 4: Simplify right side
   119,612,310.16x = 10,664,550,326,333,182
5. Step 5: Solve for x
   x = 10,664,550,326,333,182/119,612,310.16
6. Step 6: Final answer
   x = 89,159,304.02