Finding the Fourth Proportional to 168,499,337.10, 252,749,005.65 and 168,499,337.10

Step by Step Solution

1. Step 1: Write the proportion equation
   168,499,337.10 : 252,749,005.65 = 168,499,337.10 : x
2. Step 2: Convert to fraction form
   168,499,337.10/252,749,005.65 = 168,499,337.10/x
3. Step 3: Cross multiply
   168,499,337.10x = 252,749,005.65 × 168,499,337.10
4. Step 4: Simplify right side
   168,499,337.10x = 42,588,039,904,709,152
5. Step 5: Solve for x
   x = 42,588,039,904,709,152/168,499,337.10
6. Step 6: Final answer
   x = 252,749,005.65