Finding the Fourth Proportional to 864,120,493.37, 1,296,126,931.62 and 532,190,665.50

Step by Step Solution

1. Step 1: Write the proportion equation
   864,120,493.37 : 1,296,126,931.62 = 532,190,665.50 : x
2. Step 2: Convert to fraction form
   864,120,493.37/1,296,126,931.62 = 532,190,665.50/x
3. Step 3: Cross multiply
   864,120,493.37x = 1,296,126,931.62 × 532,190,665.50
4. Step 4: Simplify right side
   864,120,493.37x = 689,786,654,308,442,368
5. Step 5: Solve for x
   x = 689,786,654,308,442,368/864,120,493.37
6. Step 6: Final answer
   x = 798,252,858.95