Finding the Fourth Proportional to 72,300,924.80, 99,775,162.50 and 39,705,876.80

Step by Step Solution

1. Step 1: Write the proportion equation
   72,300,924.80 : 99,775,162.50 = 39,705,876.80 : x
2. Step 2: Convert to fraction form
   72,300,924.80/99,775,162.50 = 39,705,876.80/x
3. Step 3: Cross multiply
   72,300,924.80x = 99,775,162.50 × 39,705,876.80
4. Step 4: Simplify right side
   72,300,924.80x = 3,961,660,309,924,979.50
5. Step 5: Solve for x
   x = 3,961,660,309,924,979.50/72,300,924.80
6. Step 6: Final answer
   x = 54,794,047.53