Finding the Fourth Proportional to 105,185,865.40, 157,778,795.68 and 28,508,892.10

Step by Step Solution

1. Step 1: Write the proportion equation
   105,185,865.40 : 157,778,795.68 = 28,508,892.10 : x
2. Step 2: Convert to fraction form
   105,185,865.40/157,778,795.68 = 28,508,892.10/x
3. Step 3: Cross multiply
   105,185,865.40x = 157,778,795.68 × 28,508,892.10
4. Step 4: Simplify right side
   105,185,865.40x = 4,498,098,661,709,066.50
5. Step 5: Solve for x
   x = 4,498,098,661,709,066.50/105,185,865.40
6. Step 6: Final answer
   x = 42,763,337.49