Finding the Fourth Proportional to 525,811,443.27, 725,556,569.61 and 302,865,632.91

Step by Step Solution

1. Step 1: Write the proportion equation
   525,811,443.27 : 725,556,569.61 = 302,865,632.91 : x
2. Step 2: Convert to fraction form
   525,811,443.27/725,556,569.61 = 302,865,632.91/x
3. Step 3: Cross multiply
   525,811,443.27x = 725,556,569.61 × 302,865,632.91
4. Step 4: Simplify right side
   525,811,443.27x = 219,746,149,666,941,152
5. Step 5: Solve for x
   x = 219,746,149,666,941,152/525,811,443.27
6. Step 6: Final answer
   x = 417,918,157.70