Finding the Fourth Proportional to 76,919,919.72, 115,395,276 and 28,398,068.52

Step by Step Solution

1. Step 1: Write the proportion equation
   76,919,919.72 : 115,395,276 = 28,398,068.52 : x
2. Step 2: Convert to fraction form
   76,919,919.72/115,395,276 = 28,398,068.52/x
3. Step 3: Cross multiply
   76,919,919.72x = 115,395,276 × 28,398,068.52
4. Step 4: Simplify right side
   76,919,919.72x = 3,277,002,954,732,311.50
5. Step 5: Solve for x
   x = 3,277,002,954,732,311.50/76,919,919.72
6. Step 6: Final answer
   x = 42,602,786.98