Finding the Fourth Proportional to 673,309,488.37, 1,010,060,621.34 and 207,010,066.05

Step by Step Solution

1. Step 1: Write the proportion equation
   673,309,488.37 : 1,010,060,621.34 = 207,010,066.05 : x
2. Step 2: Convert to fraction form
   673,309,488.37/1,010,060,621.34 = 207,010,066.05/x
3. Step 3: Cross multiply
   673,309,488.37x = 1,010,060,621.34 × 207,010,066.05
4. Step 4: Simplify right side
   673,309,488.37x = 209,092,715,938,097,472
5. Step 5: Solve for x
   x = 209,092,715,938,097,472/673,309,488.37
6. Step 6: Final answer
   x = 310,544,733.96