Finding the Fourth Proportional to 186,108,854.35, 279,163,631.45 and 76,814,141.71

Step by Step Solution

1. Step 1: Write the proportion equation
   186,108,854.35 : 279,163,631.45 = 76,814,141.71 : x
2. Step 2: Convert to fraction form
   186,108,854.35/279,163,631.45 = 76,814,141.71/x
3. Step 3: Cross multiply
   186,108,854.35x = 279,163,631.45 × 76,814,141.71
4. Step 4: Simplify right side
   186,108,854.35x = 21,443,714,746,443,400
5. Step 5: Solve for x
   x = 21,443,714,746,443,400/186,108,854.35
6. Step 6: Final answer
   x = 115,221,356.99